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.

[EX Q]: Question: For which disorder is the technique of fading stimulated frequently used? 
 Options:  <0> Enuresis <1> The selective mutism. <2> Childhood asthma <3> Posttraumatic stress disorder secondary to sexual abuse. <4> The encopresis.
[EX A]: psychology

[EX Q]: Question: In the training in HHSS applied to social phobia, modeling is used for the learning of certain skills. The chosen model must be: 
 Options:  <0> Very competent and keep that competition constant throughout the training. <1> Be relatively competent (a little more than the subject you train) and increase the competition throughout the training. <2> Be very competent and decrease your competence. <3> Being incompetent so that the patient can identify with him. <4> Must be a little more competent than the patient and not progress so that as the learning progresses the patient will overcome and increase their motivation.
[EX A]: psychology

[EX Q]: Question: Sulfonic acids are converted to sulfonyl chlorides by treatment with: 
 Options:  <0> Methylene chloride <1> Chlorine. <2> Sodium chloride. <3> Thionyl chloride. <4> Chloroform.
[EX A]:
chemistry