I would say that all are necessary but the most important one's (in my opinion) are [2, [5, [7, and [9.
I would say the healthiest person both mentally and emotionally would be answer choice B. I would choose this answer because he does not need other people's approval like Elliot needs and does not need to feel liked and popular like Anna does. Chris is happy and does what he likes to do and his friendships are a healthy relationship.
I should assume it warming up. You warm up before you play any sport right? Playing sports is exercising.
Hope this helps you!!
