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: In mass spectrometry, the most common fragmentation pattern is the break in α, which cleaves the alkyl bond adjacent to the carbonyl to give: 
 Options:  <0> The corresponding acyl cation and an alkyl radical. <1> The corresponding acyl anion and an alkyl radical. <2> The corresponding acyl radical and an alkyl radical. <3> The corresponding acyl cation and an alkyl cation. <4> The corresponding acyl anion and an alkyl anion.
[EX A]: chemistry

[EX Q]: Question: The main virulence factor of Streptococcus pneumoniae is one (one): 
 Options:  <0> Fímbria. <1> Capsule. <2> Scourge <3> Endotoxin <4> Adhesin
[EX A]: biology

[EX Q]: Question: A patient with peripheral occlusive arteriopathy who presents intermittent claudication will be recommended: 
 Options:  <0> Absolute rest to reduce the demands of O2. <1> Elevate the legs to reduce pain. <2> Apply dry heat to the legs to promote vasodilation. <3> Walk on flat surfaces. <4> Use gradual compression stockings.
[EX A]:
nursery