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 reaction conditions for the preparation of 2-methyl-2-methoxypropan-1-ol from 2,2-dimethyloxirane are: 
 Options:  <0> Methanol in acid medium. <1> Lithium aluminum hydride in methanol. <2> Methylmagnesium bromide and subsequent hydrolysis. <3> Sodium methoxide in methanol. <4> Triphenylphosphine in methanol.
Example Output: chemistry

Example Input: Question: Which of the following is currently the only contraindication for conservative surgical treatment in breast cancer? 
 Options:  <0> Prior radiotherapy. <1> Tumor of 4 cm. <2> Axillary metastasis. <3> Multifocal tumor <4> Pregnancy of 32 weeks.
Example Output: medicine

Example Input: Question: Systematic training for the redirection of attention to aspects or positive external stimuli to counteract the excess of self-consciousness, is part of the psychological treatment protocols especially for: 
 Options:  <0> Obsessive-compulsive disorder <1> The agoraphobia. <2> Anxiety disorder (panic disorder). <3> Social phobia <4> Post-traumatic stress disorder
Example Output:
psychology