Rearrange the following parts of the sentence to form a coherent paragraph about the generation gap between the old and the young. P: In order to bridge this generation gap, elders should adopt a more sympathetic approach towards the young, and try to understand the emotions, aspirations and problems of the young. Q: They should, therefore, value the advice and counsel of the elders. R: The generation gap has widened to such an extent that the old and the young people appear to be living in two separate worlds without any interaction. S: The youth should realise that they have no experience of life.

Introduction / Context:
This rearrangement question deals with the social issue of the generation gap between older people and the youth. The four parts describe the problem and propose solutions for both elders and young people. To arrange them in the correct logical order, we must identify where the problem is introduced, how the argument develops and in what sequence the responsibilities of elders and youth are discussed. The final paragraph should read smoothly and show a sensible cause and effect relationship between the widening gap and the suggested remedies.

Given Data / Assumptions:

• R describes the present situation: the generation gap has widened so much that old and young live in separate worlds.
• P suggests what elders should do: adopt a sympathetic approach and understand the feelings and problems of the young.
• S suggests what the youth should realise: they lack experience of life.
• Q continues about the youth: they should value the advice and counsel of elders.
• We assume the paragraph will start with the problem statement and then move to solutions involving both age groups.

Concept / Approach:
The best method for such questions is:

• Find the sentence that introduces the topic; here it is the description of the generation gap.
• Group together sentences that talk about elders and those that talk about the youth.
• Check pronouns such as "they" in Q to see which noun it refers to.
• Arrange the solution sentences so that elders' responsibilities and youths' responsibilities follow the problem logically.

This structured approach helps determine a sequence that maintains clarity and coherence.

Step-by-Step Solution:
Step 1: R is clearly the introductory sentence because it defines the extent of the generation gap and describes the two age groups living in separate worlds. Step 2: Once the problem is stated, it is natural to talk about how to bridge the gap. P does this by recommending that elders adopt a sympathetic attitude and understand the young, so P follows R. Step 3: After discussing the role of elders, the logical move is to discuss the responsibility of the youth. S states that the youth should realise they have no real experience of life. Step 4: Q then naturally follows S because "They should, therefore, value the advice and counsel of the elders" refers back to "The youth" in S. The "therefore" clearly links the lack of experience with the need to respect elders' guidance. Step 5: Thus, the correct coherent order is R (problem), P (elders' role), S (realisation of youth), Q (youth valuing elders).

Verification / Alternative check:
If we read the sequence RPSQ as a continuous paragraph, it begins with a description of the generation gap and then offers a balanced solution from both sides. Any other order leads to pronoun confusion or an unbalanced discussion. For example, RSQP would put S and Q before P, so the youth are advised to value elders before we even discuss what elders should do to bridge the gap. PQRS starts with P which mentions "this generation gap" without defining it first, and RPQS splits the two youth-related sentences S and Q, weakening the connection between "The youth" and "They". This confirms that RPSQ is the only arrangement that keeps the meaning precise.

Why Other Options Are Wrong:

• RSQP: Ends with P, which again talks about bridging the gap, giving the paragraph an unfinished feel and disturbing the logical flow.
• PQRS: Refers to "this generation gap" in P before introducing the concept in R, which is confusing for the reader.
• RPQS: Splits the two sentences about the youth and puts P between them, which is grammatically possible but logically weaker and less cohesive.

Common Pitfalls:
Many learners jump to a sequence simply because sentences look grammatically correct together. The bigger challenge is to maintain logical progression and proper pronoun reference. Another pitfall is to overlook words like "therefore" which signal a cause and effect link, here between S and Q. In rearrangement questions, always scrutinise such connectors and ensure that the sentence which gives the reason comes before the sentence that draws the conclusion.

Final Answer:
The correct order of the parts is RPSQ, so the right option is RPSQ.