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: On the molecular biology of cancer: 
 Options:  <0> Oncogenes are mutated derivatives of normal genes, called protooncogenes, whose function is to promote cell proliferation or survival. <1> Oncogenes are genes that synthesize proteins that inhibit cell proliferation. <2> The tumor suppressor genes synthesize proteins that inhibit cell death. <3> Protooncogenes synthesize proteins that promote cell death. <4> Apoptosis is a form of activation of proto-oncogenes.
[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: Which of the following statements about the meta-analysis is correct? 
 Options:  <0> The objective of the meta-analysis is to quantitatively summarize the results of the studies carried out. <1> The meta-analysis is a large clinical trial. <2> It would be desirable to avoid negative clinical trials, as well as unpublished ones, to prevent selection biases. <3> By definition, all meta-analyzes are a reliable source of evidence, the quality of the trials being irrelevant or if they include the results of randomized clinical trials. <4> The meta-analysis will correct the errors of carrying out the tests.
[EX A]:
medicine