Concept:This question tests the ability to arrange jumbled sentences into a coherent paragraph by identifying logical connectors and thematic links.
Explanation:S1 states that exercise makes organ systems more efficient.
R uses “also” to add a related benefit—using energy and preventing fat storage—so it follows S1 smoothly.
S then introduces a broader point: exercise increases fitness in three ways.
P lists the first way (improving strength, flexibility, and reducing sprain risk).
Q uses “also” to add the second way (improving endurance), linking naturally to P.
Thus, the logical flow becomes S1 → R → S → P → Q → S6.
This sequence corresponds to option B: R, S, P, Q.
Answer:The correct answer is option B: R, S, P, Q.
