TASK DEFINITION: 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.
PROBLEM: Question: Aflatoxin B1 is a natural product that owes its toxicity to a product of its metabolism, very reactive, of the nature of:
Options: <0> 1,2-Diol. <1> Quinonymine <2> Epoxide <3> , -unsaturated carbonyl. <4> Radical hydroperoxide.

SOLUTION: pharmacology

PROBLEM: Question: The DNA Girasa is:
Options: <0> A eukaryotic Topoisomerase I. <1> A eukaryotic Topoisomerase II <2> A prokaryotic Topoisomerase I <3> A prokaryotic Topoisomerase II. <4> A prokaryotic Helicasa.

SOLUTION: chemistry

PROBLEM: Question: What allows to get a negative reinforcement?
Options: <0> Decrease reinforced behavior. <1> Eliminate reinforced behavior. <2> Increase reinforced behavior. <3> Extinguish reinforced behavior. <4> It does not change the behavior.

SOLUTION:
psychology