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': 'Rest seat of canine should be? \nSelect and explain. \nA. Flat, B. Triangular, C. V shaped, D. Seat cannot be given on canine', 'role': 'user'}, {'content': "Answer: C \nExplanation: Design for canine rest:\nMD width : 2.5-3 mm\nFL width : 2 mm\nDepth : 1.5 mm\nApex of 'V' shape\xa0is directed incisally.", 'role': 'assistant'}]