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: The hydrolysis of phosphatidylinositol 4,5-bisphosphate (PIP2) by phospholipase C generates the following second messengers: 
 Options:  <0> Inositol 1,4,5-trisphosphate and triacylglycerol. <1> Inositol 1,4, 5-trisphosphate and glycerol. <2> Inositol 1,4, 5-trisphosphate and diacylglycerol. <3> Inositol 4,5-bisphosphate and diacylglycerol. <4> Inositol 4,5-bisphosphate and glycerol.
Example Output: chemistry

Example Input: Question: To silence messenger RNA (mRNA) siRNAs and miRNAs are usually linked to your: 
 Options:  <0> TATA box. <1> 5'-UTR. <2> 5 'cap. <3> 3'-UTR. <4> Poly (A) 3 tail.
Example Output: biology

Example Input: Question: Dimethyl sulfoxide (DMSO): 
 Options:  <0> It is a protic polar solvent. <1> It is a polar aprotic solvent. <2> It is not a solvent. <3> It is a colorless solid. <4> None of the above.
Example Output:
chemistry