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': 'Ramping is done to treat the hemiseptal defect was given by: \nSelect and explain. \nA. Oshenbeen, B. Morris, C. Nymen, D. Karring', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]