Answer:

Explanation:


Using the algebric identity
So,


B makes the most sense to me so I would go with that
Answer:
<h2>Working out in a gym.</h2>
Explanation:
Among options, "working out in a gym" is the healthy activity.
What Sophia is trying to do is to encourage to a healthy activity, so going out to a bar, chewing tobacco and going to a party, those are not activities that lead to healthy results, but to alcohol and drugs consumption which attempts against any healthy habit. So, basically that's why "working out in a gym" is the right answer.