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: In the processing and presentation of peptides of extracellular origin intervene (n): 
 Options:  <0> The TAP proteins. <1> The tapasina. <2> The HLA-DM molecule. <3> The proteosome. <4> The HLA-B molecules.
Example Output: biology

Example Input: Question: Which of the following combinations of drugs is commonly used in the maintenance treatment of patients with a kidney transplant? 
 Options:  <0> Tacrolimus, cyclosporine and mycophenolate mofetil. <1> Tacrolimus, mycophenolate mofetil and glucocorticoids. <2> Tacrolimus, sirolimus and mycophenolate mofetil. <3> Tacrolimus, azathioprine and mycophenolate mofetil. <4> Cyclosporine, azathioprine and mycophenolate mofetil.
Example Output: medicine

Example Input: Question: In general, viruses that have a naked capsid: 
 Options:  <0> They are stable against drying. <1> They are commonly released from the host cell by budding. <2> They are very sensitive to detergents. <3> They are very sensitive to the conditions in the intestinal tract. <4> They can not be neutralized by host antibodies.
Example Output:
biology