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': 'Pontic design for anterior should be of following to give excellent aesthetics: \nSelect and explain. \nA. Ridge lap, B. Sanitary., C. Ovate., D. Bullet-shaped.', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]