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
True about campylobacter: 
Select and explain. 
A. Polar flagella, B. Grows at 25degC, C. Strict aerobe, D. Psychrophilic
A: Polar flagella
Answer: A: Polar flagella 
Explanation: Ans. is. 'a' i. e., Polar flagella