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: Forensic Medicine
[{'content': 'Cephalic index of negros ? \nSelect and explain. \nA. 85-90, B. 80-85, C. 75-80, D. 70-75', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., 70-75", 'role': 'assistant'}]