In this English sentence rearrangement question, arrange the parts P, Q, and R to form a coherent sentence about urban and rural health conditions in developing countries.

Introduction / Context:
Sentence rearrangement questions require you to arrange given parts of a sentence in the correct logical and grammatical order. In this question, you are working with three labelled segments that together should form a meaningful sentence about health conditions in developing countries. The skill being tested is your ability to recognise how subjects, verbs, and comparative phrases are typically ordered in clear English writing.

Given Data / Assumptions:

• The fixed opening is: In developing countries today.
• Part P: urban health conditions.
• Part Q: than rural health conditions.
• Part R: seem to be better.
• You must choose the correct sequence from PRQ, PQR, QRP, and RPQ to form a single coherent sentence.

Concept / Approach:
A standard English comparative sentence often follows the structure subject plus verb phrase plus comparative phrase. In this case, the subject is urban health conditions, the verb phrase is seem to be better, and the comparative phrase is than rural health conditions. Therefore, after the introductory phrase In developing countries today, the parts should appear in the order P (subject), R (verb phrase), and Q (comparative phrase). This pattern maintains both grammatical correctness and natural flow.

Step-by-Step Solution:
Step 1: Attach each part to the introductory phrase to see what fits naturally. Start by placing P after the opening to get In developing countries today urban health conditions.Step 2: Next, decide what should follow the subject. To make a complete clause we need a verb phrase, which is found in R: seem to be better.Step 3: After adding R, the partial sentence reads In developing countries today urban health conditions seem to be better.Step 4: Finally, to complete the comparison, add Q: than rural health conditions.Step 5: The full sentence becomes In developing countries today urban health conditions seem to be better than rural health conditions, which is grammatically correct and meaningful.Step 6: This sequence corresponds to option PRQ.

Verification / Alternative Check:
Check the other orders quickly. PQR would produce In developing countries today urban health conditions than rural health conditions seem to be better, which is incorrect because the comparison phrase appears before the verb seem. QRP begins with the comparative phrase than rural health conditions, which cannot logically follow the introductory phrase directly. RPQ begins with the verb phrase seem to be better and is missing a clear subject at that point. Only PRQ produces a natural subject plus verb plus comparison structure, which confirms it is the correct answer.

Why Other Options Are Wrong:
Option PQR misplaces the verb, creating a broken comparison. Option QRP and option RPQ both violate the normal subject first order and produce awkward or meaningless fragments when attached to the opening clause. Since rearrangement questions are designed around typical English sentence patterns, any order that breaks subject plus verb plus complement will sound wrong or incomplete. Thus, these three options fail both grammatically and logically.

Common Pitfalls:
Many learners focus only on the sense of comparison and quickly pair better with than without checking the position of the main verb. Another frequent mistake is to start with R because seem to be better feels like the central idea, forgetting that English clauses need a subject before such a verb phrase. To handle similar questions correctly, always identify the subject, the verb phrase, and any comparative or additional phrase, and then arrange them in that standard order after any introductory phrase given in the question.

Final Answer:
The correct sequence is PRQ, giving the sentence: In developing countries today urban health conditions seem to be better than rural health conditions.