Belinda is on the gymnastic and swimming teams at her school. She is 5' 7". She is obsessed with reading weight loss books. She is overly attentive to her weight. She refuses to eat during breakfast, intentionally misses lunch and only eats half of a sandwich, half of an apple and a half cut of water for dinner. Belinda has lost so much weight that her gymnastic and swimming coaches are concerned about her because her hair is beginning to fall out and she looks emaciated. What is the proper diagnosis that Belinda's physician assigned to Belinda's condition?
A. Anorexia nervosa
B. Anorexic bulimic
C. Carpal tunnel syndrome
D. Nervosa energetic syndrome
E. Bulimia