Definition: 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'.
Input: Question: What do behavioral treatments for major depressive disorder have in common? 
 Options:  <1> The use of exposure techniques to stressful situations. <2> The main objective of modifying maladaptive beliefs and assumptions that make a person vulnerable to depression. <3> Which are unstructured therapies and without a limited number of sessions. <4> The main objective of increasing the positive reinforcement received by the depressed person. <5> The main objective of relating depression to problematic interpersonal situations.
