In the Context of Anorexia Nervosa, Which of the Following

In the context of anorexia nervosa, which of the following statements is true?  

A) Affluent females may be at greater risk because they have greater access to fitness centers and health clubs. 
B) Anorexia nervosa mostly afflicts women during middle age when they are going through a mid-life crisis. 
C) In anorexia nervosa, binge eating is followed by purging. 
D) In anorexia nervosa, food restriction is followed by binge eating.