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: What are the components of a functional heme group ?: 
 Options:  <0> Four molecules of bilirubin and one Fe3 +. <1> Four globins (2alpha + 2beta) and one Fe3 +. <2> One molecule of protoporphyrin and one Fe2 +. <3> One molecule of bilirubin and one Fe2 +. <4> Four globins (2alpha + 2beta) and one Fe2 +.
[A]: pharmacology


[Q]: Question: A 60-year-old patient who came to the hospital's emergency department due to a left chest pain, cough and yellowish sputum, a temperature of 38.7ºC, a sensation of shortness of breath. Artificial saturation of 02 80%. Hemogram leukocytes 12000 / uL with 86% polymorphonuclear cells. Chest x-ray: alveolar infiltrate on the left base with air bronchogram. On suspicion of pneumonia, pneumococcal Ag is made in urine, which is positive and sputum culture is sent to the Microbiology service. Which empirical antibiotic treatment of the indicated ones is more correct in expectation of microbiological results? 
 Options:  <0> Ceftazidime <1> Clarithromycin <2> Azithromycin <3> Ceftriaxone <4> Doxycycline
[A]: medicine


[Q]: Question: The T lymphocyte receptor (TCR): 
 Options:  <0> Experience change of class. <1> Does not experience affinity maturation. <2> It transmits signals to the T lymphocyte on its own. <3> It has two sites of antigen recognition such as antibodies. <4> Performs effector functions mediated by its constant regions.
[A]:
biology