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: Orthopaedics
[{'content': "True about CDH-a) Usually b/1b) Genu valgumc) Wadding gaitd) Shenton's line brokene)  Spine lordosis present \nSelect and explain. \nA. bce, B. abd, C. bcde, D. acde", 'role': 'user'}, {'content': 'Answer: C \nExplanation: CDH is bilateral only in one third of cases.\nAll other options have been explained.', 'role': 'assistant'}]