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': 'Cuspal angulation for semi anatomic teeth is \nSelect and explain. \nA. 18 degrees, B. 20 degrees, C. 22 degrees, D. 24 degrees', 'role': 'user'}, {'content': 'Answer: B \nExplanation: 20 degrees is the cuspal angulation of semi anatomic teeth. It is wider to corresponding anatomic teeth.', 'role': 'assistant'}]