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: Hyponatremia is part of the clinical picture of: 
 Options:  <0> Addison's disease <1> Central diabetes insipidus. <2> Nephrogenic insipid diabetes. <3> Mellitus diabetes. <4> Febrile states.
Example Output: pharmacology

Example Input: Question: The 2,4-diaminopteridine systems, such as aminopterin or methotrexate, are good antitumor agents since they reduce the biosynthesis of purines and pyrimidines by inhibiting the enzyme: 
 Options:  <0> Timidylate synthetase <1> Aromatase <2> Topoisomerase <3> Reverse transcriptase <4> Dihydrofolate reductase.
Example Output: pharmacology

Example Input: Question: Which of the following beliefs is part of the nuclear schemes of a schizoid personality disorder, according to the model of Cognitive Therapy? 
 Options:  <0> I'm better than the others. <1> The others are fools. <2> Being controlled by others is intolerable. <3> I need people to survive. <4> The others do not compensate me.
Example Output:
psychology