Task: Text Categorization
Input (English): 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.
Output (English): pharmacology