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.

Q: Question: In the presence of a patient with suspected blistering pemphigoid, which of the following tests should we perform to confirm the diagnosis? 
 Options:  <0> Dermatoscopy. <1> Cultivation of the contents of a blister. <2> Skin biopsy for culture. <3> Skin biopsy for histological study and direct immunofluorescence. <4> Analytical with determination of antinuclear and anti DNA antibodies.

A: medicine
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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.

A: psychology
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Q: Question: Parathymia is characterized by: 
 Options:  <0> Flexibility and emotional or affective modulation have been lost. <1> There are mixed feelings of love-hate. <2> There are rapid changes of mood. <3> There is an absence of control over the expression of affects. <4> Affective expression is discordant or inappropriate with the situation.

A:
psychology
****