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: Surgery
. Internal fistulas with colonic diverticulitis are most often 
Select and explain. 
A. Colovesical, B. Coloenteric, C. Colocolonic, D. Colovaginal
A: Colovesical
Answer: A: Colovesical 
Explanation: None