Answer:
I'm only in 7th grade so I guess veins but idk
B. cholesterol is a steroid
The answer is C. You don't really need the others because they don't impact your physical health. If you think about it that way!!
Um... I think you need answer choices to pick from. If you add that by editing your question, I think I'll be able to help! :)
To have good communication skills so that you develop better relationships.