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
Microaerophilic bacteria is: 
Select and explain. 
A. Campylobacter, B. Vibrio cholera, C. Pseudomonas, D. Salmonella
A: Campylobacter
Answer: A: Campylobacter 
Explanation: Ans. is 'a' i.e., CampylobacterRef:(Harrison, 19th/e, p. 1038; Ananthanarayan, 9th/e, p. 400)Microaerophilic bacteria - H. pylori, Campylobacter, B. burgdorferi and T. pallidum.