This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Surgery
True about viual colonscopy (VC) 
Select and explain. 
A. Have better image than convential colonoscopy, B. VC is performed by CT & MRI, C. Take over time than conventional colonoscopy, D. easy to take tissue sample
A: Have better image than convential colonoscopy
Answer: A: Have better image than convential colonoscopy 
Explanation: .Viual colonoscopy (CT colonography) is also useful to visualize entire colon.provides bette visualization than conventional colonoscopy. ref:SRB&;s manual of surgery,ed 3,pg no 839