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: Unknown
[{'content': 'Which test is being performed here ? \nSelect and explain. \nA. Ortolani’s test, B. Barlow’s test, C. Galeazzi’s test, D. Trendelenber’s Test', 'role': 'user'}, {'content': 'Answer: C \nExplanation: It is done to assess shortening in patients of DDH', 'role': 'assistant'}]