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: Epidemiology allows early detection of changes in the incidence of a certain disease in the population. For this, the most correct thing is to use: 
 Options:  <0> The etiological investigation. <1> The description of the natural history of the disease. <2> Epidemiological surveillance. <3> The evaluation of the functioning of the services. <4> None of the previous answers is correct.
Example Output: nursery

Example Input: Question: By reaction of carbonyls with primary and secondary amine, the following are obtained: 
 Options:  <0> Iminas and oximes. <1> Iminas and enaminas. <2> Oxazones and hydrazones. <3> Semicarbazones and nitrones. <4> None of the above.
Example Output: chemistry

Example Input: Question: The reaction in which a vinyl halide or aryl reacts with a terminal alkyne in the presence of cuprous iodide and a Pd (0) catalyst is known as the reaction of: 
 Options:  <0> Suzuki <1> Heck <2> Stille <3> Sonogashira. <4> Sharpless.
Example Output:
chemistry