A helpful influence is going to persuade you to try and make smart choices like turning in homework on time and a risky behavior maker will persuade you to do things you might feel uncomfortable doing
The answer is C. alveoli :)
Hope this helps!
Answer:
I think the answer might be fat.
1) apply sunscreen before and during time out in the sun
2) sit under an umbrella/awning
3) wear a cover up so the skin isn't exposed
4) stay inside during peak hours of sun