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.
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Question: 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.

Answer: psychology


Question: Question: Which of the following insulins is used for the basal dose in a diabetic patient? 
 Options:  <0> Lispro. <1> Aspart. <2> Metformin. <3> Glargine <4> Regular.

Answer: nursery


Question: Question: In the respiratory chain: 
 Options:  <0> Ferrosulfurized proteins contain heme groups. <1> The heme groups are in carotenoids. <2> Cytochromes contain iron and sulfur groups. <3> Ubiquinones transport protons and electrons. <4> All transporters carry two electrons.

Answer:
biology