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 main virulence factor of Streptococcus pneumoniae is one (one): 
 Options:  <0> Fímbria. <1> Capsule. <2> Scourge <3> Endotoxin <4> Adhesin
Example Output: biology

Example Input: Question: Reactions in which there are no intermediates are described as: 
 Options:  <0> Concerted. <1> Polar <2> Radicals <3> Homolitic <4> Heterolithic
Example Output: chemistry

Example Input: Question: In which of these patients would the appropriate surgical treatment be the performance of an atypical wedge gastrectomy by laparoscopy without extended lymphadenectomy? 
 Options:  <0> Infiltrating and ulcerated gastric adenocarcinoma at the antro-pylorus level. <1> Subcardial infiltrating gastric adenocarcinoma. <2> Gastrointestinal stromal tumor at the level of the gastric body-greater curvature. <3> Lymphoma MALT. <4> Barrett's esophagus with intestinal metaplasia and dysplasia.
Example Output:
medicine