Answer:
The activities required when playing volleyball strengthen the upper body, arms, shoulders, thighs, abdominals, and lower legs. In addition, volleyball improves hand-eye coordination, reflexes, and balance. Last but not least, volleyball teaches teamwork and communication and is a great social activity
I don’t think you want your health being evaluated by a bunch of high schoolers.
If you’re concerned ask your doctor.
The answer is C. Cardiovascular
best of luck :)