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 hypertension developed in hyperaldosteronism is produced by: 
 Options:  <0> Increase in blood calcium. <1> Desensitization of the vascular wall to the vasoconstrictors. <2> Greater release of adrenaline and noradrenaline. <3> Increase in the reabsorption of Na + and H2O. <4> Decrease in blood volume.
[EX A]: pharmacology

[EX 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 +.
[EX A]: pharmacology

[EX Q]: Question: Which of the following detectors is used in Infrared Spectroscopy? 
 Options:  <0> Photomultiplier tube. <1> Flame ionization detector. <2> Potentiostat. <3> Proportional counter <4> Deuterated triglycine sulfate crystal.
[EX A]:
chemistry