This is known as communications........
Answer:
Anorexia Nervosa
An eating disorder characterized by abnormally low body weight.
Bulimia Nervosa
Eating disorder characterized by binge eating, followed by methods to avoid weight gain.
Binge eating disorder
A disorder involving frequent consumption of large amounts of food without stopping.
Pica
An eating disorder characterized by a tendency to eat substances that provide no nutritive value such as soil, chalk, hair or paper.
Explanation:
The answer to this question is A