In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.
Q: Question: What mental disorder is defined by the presence of binge eating together with the use of inappropriate compensatory methods to avoid weight gain?
Options: <1> Anorexia Nervosa without amenorrhea. <2> Binge eating disorder. <3> Bulimia nervosa. <4> Obesity. <5> Compulsive dining
A:
3