Ellen Is Underweight but Not Less Than 85 Percent of Normal

Ellen is underweight but not less than 85 percent of normal body weight. She often restricts her eating because she is intensely fearful of becoming fat. She binges and purges at least twice a week. According to the DSM-IV-TR she should be diagnosed

A) with no form of eating disorder since her symptoms do not fit anorexia or bulimia.
B) with anorexia nervosa, binge/purge subtype.
C) with Binge Eating Disorder.
D) with Eating Disorder Not Otherwise Specified.