What are the criteria for the diagnosis of bulimia nervosa according to DSM-IV? Episodes of recurrent binge eating Preoccupation with eating and a ...

What are the criteria for the diagnosis of bulimia nervosa according to DSM-IV?
Episodes of recurrent binge eating
Preoccupation with eating and a strong desire or compulsion to eat
Attempts to neutralize the effects of gaining weight through self-induced vomiting, self-induced purging, periods of starvation and/or use of drugs such as anorectics, laxatives, thyroid preparations or diuretics
Inappropriate compensatory behaviors to prevent weight gain, such as self-induced vomiting, abuse of laxatives, diuretics or other drugs, restrictive diet or fasting, or vigorous exercise
A self-perception of being very fat, with intense fear of gaining weight, and excessive exercise or fasting
Episodes of binge eating and compensatory behaviors occur, on average, twice a week, for at least three months
Self-evaluation is unduly influenced by body shape and weight
The disorder does not occur exclusively during episodes of anorexia nervosa
I- The diagnosis of bulimia nervosa is based solely on the presence of episodes of recurrent binge eating.
II- The use of drugs such as anorectics, laxatives, thyroid preparations or diuretics is not considered an attempt to neutralize the effects of gaining weight.
III- The self-perception of being very fat is not a criterion for the diagnosis of bulimia nervosa.
IV- The disorder occurs exclusively during episodes of anorexia nervosa.
a) Only I and II are correct.
b) Only II and III are correct.
c) Only I, III, and IV are correct.
d) Only II, III, and IV are correct.
e) All statements are incorrect.