This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacteria, Subject name: Microbiology
A child is presenting with watery stools, gram staining is showing comma shaped bacilli. The isolated organism will show which type of motility- 
Select and explain. 
A. Tumbling, B. Darting, C. Gliding, D. Stately
B: Darting
Answer: B: Darting 
Explanation: Ans. is 'b' i.e., Darting * Water diarrhea by comma shaped bacilli is suggestive of V. cholerae infection.* V. cholerae shows darting motility.