This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
Which toxin acts by ADP ribosylation- 
Select and explain. 
A. Botulinum toxin, B. Shiga toxin, C. V.cholerae toxin, D. All
C: V.cholerae toxin
Answer: C: V.cholerae toxin 
Explanation: Ans. is 'c' i.e., V. cholerae toxin