instruction:
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.
question:
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.
answer:
nursery


question:
Question: In the compression process occurs: 
 Options:  <0> An aggregation of the powder to be compressed. <1> A decrease in porosity. <2> A decrease in interparticular contact. <3> An increase in porosity. <4> An unpacking of the particles.
answer:
pharmacology


question:
Question: The QT interval of the electrocardiogram indicates the duration of: 
 Options:  <0> Atrial contraction <1> Ventricular contraction. <2> Ventricular relaxation <3> Atrial relaxation <4> Delay in the atrioventricular node.
answer:

biology