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: The cells of the stomach that are responsible for the secretion of hydrochloric acid are: 
 Options:  <0> The main cells. <1> The G cells <2> The parietal cells. <3> The enterocytes. <4> The mucosites of surface.
Example Output: nursery

Example Input: 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.
Example Output: psychology

Example Input: Question: Heating of 4-methoxy-3,5-dinitrobenzenesulfonic acid with dilute sulfuric acid gives: 
 Options:  <0> 4-Methoxy-3,5-dinitrophenol. <1> 3,5-Diamino-4-methoxybenzenesulfonic acid. <2> 4-methoxy-3,5-dinitrobenzenesulfonic acid anhydride <3> 2-Methoxy-1,3-dinitrobenzene. <4> An organic cation
Example Output:
chemistry