You will be given a definition of a task first, then some input of the task.
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'.

Question: Currently, which of the following behavioral treatments is considered an effective treatment for major depressive disorder?
Options: <1> The applied relaxation. <2> The problem solving therapy. <3> The Flood. <4> Interpersonal therapy <5> The arrest of thought.
Output:
2