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: A patient from Bolivia diagnosed with Chagas disease underwent a blood count that showed 1,100 eosinophils / μL (12% of leukocytes). Which of the following diagnoses is LESS likely? 
 Options:  <0> Infestation by Schistosoma haematobium. <1> Infestation by Ancylostoma duodenale. <2> Infestation by Strongyloides stercoralis. <3> Infestation by Ascaris lumbricoides. <4> Infestation by Necator americanus.
Example Output: medicine

Example Input: Question: One of the components of injectable formulations are preservatives. This category includes different excipients with different mechanisms of action. Which of the following is used as a chelating agent ?: 
 Options:  <0> Butylhydroxyanisole. <1> Ethylenediaminetetraacetic acid. <2> Ascorbic acid. <3> Propyl gelate <4> Tocopherol.
Example Output: pharmacology

Example Input: Question: To control the expression of certain genes according to population density, bacteria use systems of: 
 Options:  <0> Strict response <1> Two components <2> Perception of the quorum. <3> Densitometric adaptation. <4> Negative activation
Example Output:
biology