This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: general microbiology, Subject name: Microbiology
CCEY medium is used for culture of? 
Select and explain. 
A. C jejuni, B. C difficile, C. Yersinia pestis, D. Actinomycosis
B: C difficile
Answer: B: C difficile 
Explanation: None