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.

Example input: Question: A distension is defined as:
Options: <0> Soft tissue injury. <1> Forced movement of abrupt production. <2> Injury by stretching a muscle. <3> Injury of the joint capsule. <4> Interruption in the continuity of a bone.
Example output: nursery
Example explanation: Distension means Bloating and swelling in the belly area. It does not have much to do with chemistry, psychology, pharmacology, biology and medicine. Hence, the correct topic is nursery.
Q: Question: For what kind of interventions in the problems of child and youth behavior has Patterson's theory of coercion served as a conceptual model?
Options: <0> For the training of parents of children with behavioral disorders. <1> For rehabilitation interventions based on cognitive-behavioral. <2> For interventions carried out in therapeutic communities. <3> For referral programs that try to avoid the stigmatizing effects of labeling. <4> For the economies of tokens carried out in prisons and reformatories.
A:
psychology