It's a huge problem with young people making decisions when peer pressure and family history come to mind. First when people are peer pressured some of the decisions they can make can become a terrible problem addiction. Second for family history if your past events in your decisions it can be great or can make problems. So, those two things can affect your decisions for better or worse.
Here's paragraph hope it helps
The answer is A because relating to or denoting exercise that improves or is intended to improve the efficiency of the body's cardiovascular in absorbing and transporting oxygen.
I might be wrong but i’m pretty sure it’s because they reproduce asexually and just make copies of themselves