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 number of pairs of metacentric chromosomes of the human karyotype is: 
 Options:  <0> 8 <1> 6 <2> Four. <3> 12 <4> two.
Example Output: biology

Example Input: Question: What type of mechanism does Gestalt propose as an explanatory mechanism for solving a problem ?: 
 Options:  <0> The trial and error. <1> The search for operations in the problem space. <2> The algorithmic methods. <3> The huerísticos methods. <4> The insight.
Example Output: psychology

Example Input: Question: Of all the groups of drugs listed below, those that less frequently provoke an anaphylactic reaction in the patient are: 
 Options:  <0> The NSAIDs. <1> Opioid analgesics. <2> Contrast media containing iodine, used for radiological examinations. <3> The benzodiazepines. <4> Antibiotics, especially penicillins, cephalosporins and sulfonamides.
Example Output:
nursery