Rearrange the parts of the sentence to form a correct statement about a "stock versus flow" problem.

Introduction / Context:
This jumbled sentence question deals with an economic or analytical phrase "stock versus flow". The sentence explains that focusing only on one part of this stock flow distinction can distort the overall picture. Your task is to arrange the segments in a grammatically correct and logically coherent order.

Given Data / Assumptions:
The base sentence is: "This too, is a classic P-\"\"stock versus flow\"\" problem, where Q-focusing only on the latter R-completely distorts the picture". The parts are:

• P: "stock versus flow\"\" problem, where"
• Q: "focusing only on the latter"
• R: "completely distorts the picture"

We must place these segments correctly after the fixed initial phrase "This too, is a classic".

Concept / Approach:
The aim of such rearrangement questions is to maintain:

• Correct clause and phrase order.
• Logical linking words such as "where".
• Smooth reading from subject through verb to object or complement.

The central structure should introduce the type of problem and then describe what happens when we focus only on the latter element.

Step-by-Step Solution:
Step 1: Start with the provided beginning: "This too, is a classic". After that, we need to introduce what kind of problem it is. Step 2: Part P does this: "stock versus flow\"\" problem, where". It directly names the type of problem and introduces a subordinate clause with "where". So P should come immediately after the opening. Step 3: The clause beginning with "where" must explain what happens in this type of problem. That explanation starts naturally with an -ing phrase Q: "focusing only on the latter". Step 4: This -ing phrase needs a verb to complete its effect. Part R provides that verb phrase: "completely distorts the picture." Step 5: Combining them gives: "This too, is a classic stock versus flow problem, where focusing only on the latter completely distorts the picture." Step 6: The order used is P, then Q, then R, which corresponds to option D (PQR).

Verification / Alternative check:
Test other orders:

• PRQ: Would produce "...problem, where completely distorts the picture focusing only on the latter", which is ungrammatical.
• QRP: Starts with "focusing only on the latter", losing the necessary reference to the kind of problem.
• RPQ: Begins the description with "completely distorts the picture", leaving "where" too late or disconnected.

Only PQR gives both grammatical correctness and logical explanation of the phrase "stock versus flow" problem.

Why Other Options Are Wrong:

• QRP: Places the explanation about focusing on the latter before naming the problem, leaving the reader confused.
• RPQ: Attempts to begin with the result "completely distorts the picture" but without a clear subject.
• PRQ: Breaks the link between "where" and the participle phrase, causing grammatical and stylistic problems.

Common Pitfalls:
Students sometimes focus only on meaning fragments and ignore where subordinate conjunctions like "where" and participle phrases should appear. A good strategy is to locate such linking elements and then ensure the explanation they introduce follows immediately in a logically consistent way.

Final Answer:
The correct arrangement is PQR, giving: "This too, is a classic stock versus flow problem, where focusing only on the latter completely distorts the picture."