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': 'Which is best used for sex differentiation \nSelect and explain. \nA. Skull, B. Femur, C. Pelvis, D. Humerus', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The pelvis is the bone best used for sex determination. There are many differences between male and female pelvis. Listed below are some of the important points.', 'role': 'assistant'}]