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 oxygen of the ethers as that of the alcohols can be protonated to generate:
Options: <0> Iminium ion. <1> Alkaloxonium ions. <2> Peroxides <3> Piranos. <4> Enaminas
[EX A]: chemistry

[EX Q]: Question: What kind of drug is clozapine?
Options: <0> An anxiolytic <1> An antidepressant <2> An antipsychotic <3> A benzodiazepine <4> A hypnotic
[EX A]: psychology

[EX Q]: Question: The medium that is used to detect the production of acetoin (butylene glycol) from pyruvic acid in the fermentation of glucose is called:
Options: <0> Kligler. <1> Methyl red. <2> Voges Proskauer. <3> ONPG (ortho-nitrophenyl-galactopyranoside) <4> Beta-glucuronidase.
[EX A]:
pharmacology