Aperson who is very thin, has severe distortion regarding body image, and severely restricts food intake is most likely suffering from

The person is suffering from Bulimia Nervosa. Bulimia Nervosa is a disorder where in the person has an excessive desire to lose weight even if that person is already thin. This also shows that a person over eats then after eating the person feels depressed and guilty to what he/she have eaten. That person would lead to self-induced vomiting.

C

Explanation:

allow gases to enter and escape the body.