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.

[EX Q]: Question: Glutathione fulfills everything that follows except: 
 Options:  <0> It is a dipeptide. <1> Eliminates peroxides and free radicals. <2> Participates in the detoxification of compounds. <3> Acts as a cofactor of some enzymes. <4> Protects against oxidative stress.
[EX A]: chemistry

[EX Q]: Question: How are the proteins involved in the DNA curl and compaction called ?: 
 Options:  <0> Kinases <1> Topoisomerases <2> Histones. <3> Phosphatases <4> DNA nucleases
[EX A]: chemistry

[EX Q]: Question: Male, 68 years old, presented with muscle cramps, hypotension, fasciculations and bronchoconstriction. He has been using organophosphorus pesticides in the garden. He has not used a mask or gloves. What would be the drug of choice for its treatment? 
 Options:  <0> Carbidopa. <1> Acetylcholine <2> Nicotine. <3> Flumazenil <4> Pralidoxime
[EX A]:
pharmacology