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: The papillary muscles: 
 Options:  <0> They contract atrio-ventricular valves. <1> They prevent the reflux of blood to the atria. <2> They avoid the eversion of the semilunar valves. <3> They form the interventricular septum. <4> They are formed by visceral smooth muscle.
[EX A]: biology

[EX Q]: Question: Which of the following functions is not typical of the stomach? 
 Options:  <0> Food storage. <1> Protein digestion. <2> Secretion of intrinsic factor. <3> Secretion of hormones <4> Amylase secretion.
[EX A]: pharmacology

[EX Q]: Question: A 24-year-old woman with two weekly episodes of headache lasting between one and three days, hemicranial, intense, accompanied by sono and photophobia and nausea. As a preventive treatment, I would NOT consider one of these drugs: 
 Options:  <0> Propranolol <1> Flunarizine <2> Carbamazepine <3> Topiramate. <4> Nadolol
[EX A]:
medicine