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: The reaction of an alkene with metachloroperbenzoic acid causes a cyclic ether which is called:
Options: <0> Furano <1> Dioxane <2> Epoxide <3> Azirano <4> Lactone
[A]: chemistry

[Q]: Question: The presence (x = 1) or absence (x = 0) of bacteriuria has been determined in a group of subjects. What kind of variable is it?
Options: <0> Ordinal. <1> Numeric <2> Categorical <3> Continuous quantitative <4> Discrete quantitative.
[A]: medicine

[Q]: Question: Which of the following drugs has shown in controlled studies that can increase the effectiveness of exposure therapy in the treatment of specific phobias?
Options: <0> Alprazolam <1> Quetiapine <2> D-cycloserine. <3> Bupropion. <4> Buspirona.
[A]:
psychology