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: They are involved in the lytic action of cytotoxic T lymphocytes: 
 Options:  <0> Granzimas <1> Opsonins. <2> Histamines <3> Integrins <4> Cathepsins.

A: biology
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Q: Question: In the process of defecation is TRUE: 
 Options:  <0> When the feces penetrate the rectal ampulla, relaxation of the internal anal sphincter occurs consciously. <1> When the feces penetrate the rectal ampulla, the external anal sphincter relaxes unconsciously. <2> The external anal sphincter is controlled by nerve fibers of the pudendal nerve, part of the somatic nervous system, and therefore under voluntary conscious control. <3> The propulsive movements of the colon under normal conditions require one hour to move the chyme through the entire colon from the ileocal valve. <4> During defecation the contraction of the floor of the pelvis occurs.

A: medicine
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Q: Question: After a traffic accident, a 38-year-old patient enters the ICU in a coma. After several days the patient does not improve neurologically and CT shows hemorrhagic punctate lesions in the corpus callosum and cortico-subcortical union. What is your diagnosis? 
 Options:  <0> Acute subdural hematoma. <1> Thrombocytopenic purpura. <2> Cerebral hemorrhagic contusion. <3> Severe diffuse axonal injury. <4> Hypoxic-ischemic encephalopathy.

A:
medicine
****