This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Orthopaedics
[{'content': 'Z score measures the bone mineral density compared to \nSelect and explain. \nA. Age, Race and sex matched individuals, B. Race and sex matched individuals, C. Sex matched individuals, D. None of the above', 'role': 'user'}, {'content': "Answer: A \nExplanation: T Score and Z score are the measures of bone mineral densityZ score: measures the bone mineral density in terms of standard detion from the mean bone mineral density of age, race, and sex-matched individualsT score: measures the bone mineral density in terms of standard detion from the mean bone mineral density of race and sex-matched individuals or normal younger age group(Refer: Mohindra's Fundamentals of Ohopedics, 2nd edition, pg no. 400 - 412)", 'role': 'assistant'}]