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.
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Question: Question: The medium that is used to detect the production of acetoin (butylene glycol) from pyruvic acid in the fermentation of glucose is called: 
 Options:  <0> Kligler. <1> Methyl red. <2> Voges Proskauer. <3> ONPG (ortho-nitrophenyl-galactopyranoside) <4> Beta-glucuronidase.

Answer: pharmacology


Question: Question: In suppression ion chromatography: 
 Options:  <0> A single column is used and the conductivity of the mobile phase is kept very low. <1> The eluent must be able to be removed selectively after separation and prior to the conductometric measurement. <2> The eluent incorporates a regenerating solution of strong acid flowing in the same direction as the mobile phase. <3> Weak exchangers are used from polystyrene polymers. <4> A mobile phase with ionic conductivity gradient is used.

Answer: chemistry


Question: Question: What degree of mental disability corresponds to an IQ of thirty-six? 
 Options:  <0> Mental disability limit. <1> Mild mental disability. <2> Moderate mental disability. <3> Severe mental disability. <4> Deep mental disability.

Answer:
psychology