Purging, excessive dieting, and excessive exercising are symptoms of
a.
anorexia nervosa
b.
binge eating disorder
c.
disordered eating
d.
bulimia nervosa

D.bulimia nervosa

Explanation:

Bulimia nervosa is a eating disorder in which people enter a cycle of bingeing and compensatory disorders, people often do excessive dieting and then eventually make purging to vomit what they eat when they have lapsus of compulsive eating because of the long lasting periods of dieting. Excessive exercising are also symptoms of Bulimia Nervosa.

answer: because barriers look like ball

explanation: there round and blue like my ball