Biweekly for the Last Year, Beverly Has Experienced Irresistible Urges

Biweekly for the last year, Beverly has experienced irresistible urges to eat two gallons of ice cream and a bag of chocolate chip cookies. However, she manages to work off her calories using an exercise regimen that includes two hours of treadmill activity followed by a four-mile jog. Although she manages to avoid weight gain when she goes into her "binge modes," she complains of feeling out of control during these binges. Beverly exhibits symptoms of

A) obsessive-compulsive eating disorder.
B) bulimia nervosa.
C) anorexia nervosa.
D) a binge eating disorder.