One of Your Class Members Is Complaining of a Decline

One of your class members is complaining of a decline in physical performance despite continued training, inability to sleep, and frequent colds. You've noticed a dramatic weight loss, increased irritability, and loss of motivation to participate in training. You suspect:

A) Anorexia nervosa
B) General Adaptation Syndrome
C) A chronic autoimmune disorder
D) Overtraining syndrome