This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pelvis and Hip Injury, Subject name: Orthopaedics
[{'content': 'True statement regarding Mseleni joint disease is: \nSelect and explain. \nA. Shoulder, elbow wrist involvement is characteristic, B. Elderly males are commonly involved, C. Height is unaffected, D. Endemic to nohern Kwazulu Natal area in South Africa', 'role': 'user'}, {'content': 'Answer: D \nExplanation: * Mseleni joint disease is an endemic form of osteoahritis that affects Tsonga people in nohern Kwazulu Natal area in South Africa.* The most commonly involved joint is hip joint. * It occurs more commonly in females and younger population.', 'role': 'assistant'}]