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'.

Example input: Question: A 13-year-old girl is operated on due to Hirschsprung illness at 3 months of age. Which of the following tumors is more likely to be present?
Options: <1> Abdominal neuroblastoma <2> Wilms tumor <3> Mesoblastic nephroma <4> Familial thyroid medullary carcinoma.
Example output: 2
Example explanation: The answer to the given question should be a tumor, therefore Wilms tumor is the correct answer for the given question.
Q: Question: In the treatment of depression, therapy or training in social skills focuses mainly on improving classes or repertoires of behaviors that are especially relevant for depressed individuals and among which is the positive assertion. What kind of behavior does the positive assertion refer to?
Options: <1> Behaviors that allow the person to defend their rights and interests. <2> Conduct to initiate conversations, ask questions and perform appropriate self-revelations. <3> Conduct regarding the expression of affection, approval and praise towards other people. <4> Behaviors to impose one's own interests over the interests of others. <5> Behaviors to generate positive emotions when a person is alone.
A:
3