Given the following reasoning and answer, what was the question? Constriction occurs when the muscular walls of blood vessels contract. Arteries and veins are blood vessels. Constriction happens when the muscular walls of arteries and veins contract.
 The answer: (G)
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The question What happens when muscular walls of arteries and veins contract?
Options:
- (A) connection
- (B) It expands
- (C) Dehydration
- (D) construction
- (E) forces
- (F) massive damage
- (G) constriction
- (H) contraction
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