An Adolescent Female Whose Ideal Weight Is 120 Lbs

An adolescent female whose ideal weight is 120 lbs. weighs 95 lbs. She repeatedly engages in self-induced vomiting and exhibits an intense fear of gaining weight. She claims she feels fat and is highly concerned with her body's shape. In addition, her menstruation has been disrupted and she has a number of other physical problems. According to DSM-IV she would most likely receive the diagnosis of

A) anorexia nervosa.
B) bulimia nervosa.
C) phobia.
D) obsessive-compulsive disorder.