If you mean that they have nobody guarding them like in basketball. then you could put archery, fishing, power lifting, yoga
C- it would be bias for answer A , many high school student don't have a personal trainer as well as blog posts are not reliable, and parents do not have experience the direct impact . Those are all the reason it can't be any of the others.
1) providing proof or documentation
2) using the power of loss
3) anticipating and redirecting resistance
4) being reasonable and specific
I believe A is the answer
