Hello There!
9. Well, judging from my knowledge of this i'd say it is coffee. Some people might say water but coffee is better.
In short, it is option C. Coffee
10. From these, it seems to be alcohol. As i've read up on, alcohol can cause you to lose fluids more.
In short, it is option D. Alcohol
Hope This Helps You!
Good Luck :)
- Hannah ❤