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: In which part of the cell is ribosomal RNA synthesized ?: 
 Options:  <0> Nucleolus <1> Ribosomes. <2> Vacuolas <3> Golgi apparatus. <4> Endoplasmic reticulum.
[EX A]: chemistry

[EX Q]: Question: Which of the following antidiabetics acts by inhibiting DPP-4 and prolonging the duration of the endogenous incretins GLP-1 and GIP ?: 
 Options:  <0> Glimepiride <1> Repaglinide. <2> Sitagliptin <3> Rosiglitazone. <4> Tolbutamide
[EX A]:
pharmacology