About eight months ago, 14-year-old shelley went on a drastic weight-loss diet that caused her to drop from 110 to 80 pounds. although she is now dangerously underweight and under-nourished, she continues to think she looks fat. her frustrated father recently forced her to eat a peanut butter sandwich, but shelley immediately went to the bathroom and threw it all up. shelley most clearly suffers from:
a) excess pyy.
b) an abnormally low set point.
c) bulimia nervosa.
d) anorexia nervosa

The correct answer is D. Shelley most clearly suffers from anorexia nervosa.

Explanation:

Anorexia is an eating disorder characterized by a refusal to maintain a healthy body weight, and a compulsive fear of gaining weight due to a distorted self-image. Anorexia nervosa is a serious mental disorder that is often accompanied by other disorders and has the highest mortality rate of all mental disorders.

Patients with anorexia nervosa often have a distorted self-image, which can be maintained through various cognitive biases, which change how the affected individual evaluates and thinks about their body, food and eating. Individuals with anorexia nervosa can often be considered overweight or "big" even when they are underweight. Patients with anorexia nerves often experience dizziness, headache, fatigue, and lack of energy.