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
A 45 year old female complaints of lower abdominal pain and vaginal discharge. On examination there is cervicitis along with a mucopurulent cervical discharge.The best approach to isolate the possible causative agent would be - 
Select and explain. 
A. Culture chocolate agar supplemented with Haemin, B. Culture on McCoy cells, C. Culture on a bilayer human blood agar, D. Culture on vero cell lines
B: Culture on McCoy cells
Answer: B: Culture on McCoy cells 
Explanation: None