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: When training a patient to perform diaphragmatic breathing exercises correctly, we will indicate that:
Options: <0> Inhale through your nose while counting to 3 and exhale quickly with pursed lips. <1> Inhale through the mouth and contract the abdominal muscles for another 7 seconds. <2> Firmly press the abdomen out and down when exhaling. <3> Inhale slowly and deeply through the nose and push the abdomen outward. <4> Help yourself by supporting your hands on the rib cage while inspiring.
[EX A]: nursery

[EX Q]: Question: The analysis by potentiometric redisolution is characterized:
Options: <0> By using the square wave as an element of excitation. <1> Because the redisolution stage is carried out without agitation. <2> Because the reoxidation step is carried out by an oxidizing agent. <3> Because currents are measured in the redisolution stage. <4> Because the redisolution is carried out at constant potential.
[EX A]: chemistry

[EX Q]: Question: Which of the following statements is true with respect to dyspareunia?
Options: <0> This disorder only affects women. <1> The essential feature is the involuntary contraction of the perineal muscles of the external third of the vagina, against the introduction of the penis, fingers, tampons, or speculums. <2> This disorder appears throughout life, can not be acquired. <3> This disorder consists of genital pain during intercourse, although it may appear before or after intercourse. <4> This alteration does not cause discomfort in interpersonal relationships.
[EX A]:
psychology