Caffeine is a central nervous system stimulant. Stimulants can cause overheating and dehydration. Caffeine can cause dehydration.is the reasoning for what question and answer pair?

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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Q: Caffeine can cause 
Options:
- (A) congestion
- (B) anemia
- (C) constipation
- (D) sweating
- (E) hives
- (F) energy usage
- (G) dehydration
- (H) heat energy
A: (G)