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: 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.
Example Output: chemistry

Example Input: Question: The chloride present in a solution can be determined volumetrically, by the Mohr method, using Ag (I) as a reagent. What indicator is used in this assessment ?: 
 Options:  <0> K2Cr2O7. <1> Fe2 (SO4) 3. <2> K2CrO4. <3> KSCN <4> FeSO4.
Example Output: chemistry

Example Input: Question: Indicate which of the following drugs has antihypertensive action: 
 Options:  <0> Pancuronium <1> Nitroprusside sodium <2> Procainamide <3> Salbutamol <4> Clarithromycin
Example Output:
nursery