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.

Example Input: Question: Which of the following functions is not typical of the stomach? 
 Options:  <0> Food storage. <1> Protein digestion. <2> Secretion of intrinsic factor. <3> Secretion of hormones <4> Amylase secretion.
Example Output: pharmacology

Example Input: Question: The proteasome: 
 Options:  <0> It is formed by 21 homologous subunits organized in 3 rings. <1> It is a protein complex that catalyzes the hydrolysis of ubiquitinated proteins. <2> It is found only in animal eukaryotic cells. <3> Digest acylated proteins. <4> It is activated by a drug, bertezomil, in therapy for multiple myeloma.
Example Output: chemistry

Example Input: Question: Aflatoxin B1 is a natural product that owes its toxicity to a product of its metabolism, very reactive, of the nature of: 
 Options:  <0> 1,2-Diol. <1> Quinonymine <2> Epoxide <3> Α, β-unsaturated carbonyl. <4> Radical hydroperoxide.
Example Output:
pharmacology