I would go with A. Money.
Hope that helps you. =)
Answer:
The correct answer is a. sugar
Explanation:
Even though caffeine is also known for uprising the energy levels to a point where it could cause insomnia, the excess of sugar usually causes an increase in heart rate and insomnia. Also, coca-cola has a bigger amount of sugar than caffeine, so it explains how these high quantities could affect Xi's health.
The reproductive system is a group of sex organs that work together for the purpose of sexual reproduction. Hope this helped!