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: Dental
The most preferred incision in case of  implant surgery is: 
Select and explain. 
A. Oblique incision, B. Crestal incision, C. Crevicular incision, D. Beveled incision
B: Crestal incision
Answer: B: Crestal incision 
Explanation: None