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 ridge that descends from the cuspal tip towards the central part of the occlusal surface in a maxillary molar is \nSelect and explain. \nA. Triangular ridge, B. Marginal ridge, C. Transverse ridge, D. Oblique ridge', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]