Answer:
caffine
Explanation:
caffine gives you sugar and hype's you up and makes it harder to sleep
A, Medicaid and Medicare.
I would say A. Because c and d r very dangerous if u think about it. And b is right in some situations. But if u do a then people can see whts going on if something happened because of the light. and it is safe. If wrong let me know. :D
Https://quizlet.com/12149291/chapter-12-the-cardiovascular-system-3-flash-cards/
This website could help you a ton! ^