This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Identification, Subject name: Forensic Medicine
[{'content': 'Corporo-basal index is useful for determination of \nSelect and explain. \nA. Stature, B. Sex, C. Age, D. Race', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Corporobasal Index = Breadth of first sacral veebra *100/breadth of the base of sacrum Used to determine sex Ref - Narayana Reddy 17th edition page 50 table 4-4. traits diagnostic of Sex', 'role': 'assistant'}]