Detailed Instructions: In this task, you are given a question and answer options for that question. Using this information, you have to classify each text into different topics: medicine, nursery, psychology, chemistry, pharmacology, biology.
Q: Question: In what disorder of eating behavior, the personality of patients is characterized as impulsive people, with a tendency to make quick decisions and act unpredictably?
Options: <0> Anorexia nervosa of restrictive type. <1> Pica. <2> Obesity. <3> Bulimia nervosa. <4> Night dining
A:
psychology