Task: Text Categorization
Input (English): Question: Infections caused by Clostridium tetani, Bordetella pertussis, Corynebacterium diphtheriae and Vibrio cholerae have in common: 
 Options:  <0> The type of transmission. <1> The reservoir. <2> The production of exotoxins. <3> The affected organs. <4> The route of infection.
Output (English): biology