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': 'Cusp of carabelli is present on _________ surface of the permanent maxillary molar: \nSelect and explain. \nA. Mesial surface, B. Palatal surface, C. Buccal surface, D. Mesial half of the palatal surface', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]