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
Ogaura Inawa and Hikojima are the serotypes of: 
Select and explain. 
A. Yersina, B. Vibrio cholerae, C. E Coli, D. Salmonella typhi
B: Vibrio cholerae
Answer: B: Vibrio cholerae 
Explanation: Ans. is. 'b' i. e., Vibrio cholerae