Rearrange the following parts of the sentence to form a coherent paragraph about youth frustration and the cult of violence. P: Added to this is their economic dissatisfaction. Q: The youth get frustrated when they see a great deal of disparity between theory and its application. R: All these factors blend together and give rise to a cult of violence. S: This causes them to wonder whether all that they ever learnt will come into use or will go to waste.

Introduction / Context:
This question asks us to arrange four parts into a coherent paragraph describing causes of youth frustration and resulting violence. The sentences mention disparity between theory and practice, doubts about the usefulness of learning, economic dissatisfaction and the emergence of a cult of violence. The aim is to order them from initial cause through intermediate feelings to final consequences. Recognising sequence markers like "This causes" and "Added to this" is crucial.

Given Data / Assumptions:

• Q states that youth are frustrated when they see a big gap between theory and its application.
• S says this situation causes them to wonder whether what they learnt will come into use or go to waste.
• P notes that economic dissatisfaction is added to this frustration.
• R concludes that all these factors combine to produce a cult of violence.
• We assume "This causes" in S refers back to the situation described in Q, and "Added to this" in P refers to frustration plus doubt described in Q and S.

Concept / Approach:
The rearrangement can be solved through:

• Identifying the sentence that sets up the initial condition or problem (here, Q about frustration).
• Finding cause and effect connectors like "This causes" (S) which must follow the condition it refers to.
• Using additive connectors like "Added to this" (P) which must refer to all earlier factors.
• Leaving the summarising statement (R) that blends "all these factors" for the end.

This approach ensures that each connector links backward correctly to an already described idea.

Step-by-Step Solution:
Step 1: Q is the natural starting point because it introduces the basic problem: youth see a wide gap between theory and application and become frustrated. Step 2: S must follow Q, since it begins with "This causes them to wonder...", where "This" clearly refers to the frustration mentioned in Q. Step 3: P now fits logically because "Added to this is their economic dissatisfaction" must come after the earlier psychological factors (frustration and doubt) have been described. Step 4: R then summarises: "All these factors blend together and give rise to a cult of violence." The phrase "All these factors" refers to the dots we have connected in Q, S and P. Step 5: Therefore, the sequence QSPR expresses a clear causal chain from educational disparity to internal doubt, economic dissatisfaction and finally violence.

Verification / Alternative check:
Read QSPR as a complete paragraph and notice that there are no unresolved pronouns or broken references. Q and S are tightly linked by "This causes", P expands the list of causes with "Added to this", and R wraps everything up by saying that these combined causes lead to a cult of violence. Other orders break these links. For example, QPRS places economic dissatisfaction before the doubt mentioned in S, which makes the direction of "This causes" unclear. QSRP separates the final effect R from the sentence that best prepares it, and SPQR wrongly attempts to start the paragraph with a pronoun "This" that has no antecedent yet.

Why Other Options Are Wrong:

• QPRS: Does not respect the "This causes" link and interrupts the flow from emotional response to economic dissatisfaction.
• QSRP: Ends with P, leaving the dissatisfaction point hanging rather than showing its outcome.
• SPQR: Begins with S, using "This" without any context, which is grammatically and logically weak.

Common Pitfalls:
Candidates often focus only on topic words like "youth" and "violence" and ignore connective phrases such as "This causes" or "Added to this". However, these little expressions are powerful indicators of sentence order. Another mistake is to treat the most dramatic sentence, usually the one mentioning violence, as the introduction. In analytical paragraphs, consequences almost always come after the detailed description of causes.

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