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
[{'content': 'The most preferred incision in case of  implant surgery is: \nSelect and explain. \nA. Oblique incision, B. Crestal incision, C. Crevicular incision, D. Beveled incision', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]