Petra is having a really stressful time. There is a huge project at work that is going to take several months and has a lot of deadlines. She has heard that exercise is good for managing stress, so her friend suggested that she try yoga or qigong. What would be the BEST benefit of this type of exercise?It is the most effective way to build muscle. A
It is the most effective way to build muscle.

B.
It is the fastest way to improve brain function.

C.
It is particularly good for maintaining a solid flow of energy.

D.
It is a form of alternative medicine and has no proven benefits.