instruction:
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.
question:
Question: Which of these species is a free radical? 
 Options:  <0> The molecule NO. <1> The O2 molecule. <2> The N2O molecule. <3> The OH- anion. <4> The ClO- anion.
answer:
chemistry


question:
Question: In a basic health area, 10 cases of influenza were detected in the month of June. This form of presentation of the communicable disease is defined as: 
 Options:  <0> Epidemic. <1> Hypoendemia <2> Mesoendemia <3> Sporadic <4> Pandemic.
answer:
nursery


question:
Question: Which of the following medications is used in the treatment of Chagas disease? 
 Options:  <0> Amphotericin B. <1> Cotrimoxazole. <2> Ivermectin <3> Albendazole <4> Benznidazole
answer:

pharmacology