Answer:
you can research about the internet (social media,tv,etc) families (their behaviours, toxicity, etc) and school (work load)
Explanation:
A I think it would be muscles and bones
The first one is A, in order to avid peer pressure you have to know what peer pressure is and who has been a victim to peer pressure.
The second one is True
The third one is A to aid product marketers.
Tell me if you need anymore help!
C. that is your answer because as your heart contracts, blood flows and IF your heart is not strong enough, it will be hard to breathe.