People with anorexia usually
a. feel good about themselves
b. are ashamed to get
c. understand they are too thin
d. deny there is a problem"

The answer is letter D.

Anorexia Nervosa is a type of eating disorder that is a result of a wrong body image. People who have this disorder often see themselves different in proportions from their exact physical characteristics. They often deny the problem until the problem is too big to be solved already. It is a condition that needs immediate medical treatment through psychosis and general interventions with nutritious meals that shall be prescribed by professionals to gain the overall strength of a person who has this disorder.

Bulling? or do you mean bullying?

You can literally find this on google of each science career and search up what type of training you need and how many years in school