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
18 years old girl presents with watery diarrhea. Most likely causative agent - 
Select and explain. 
A. Rota virus, B. V. cholerae, C. Salmonella, D. Shigella
B: V. cholerae
Answer: B: V. cholerae 
Explanation: None