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: Medicine
[{'content': 'Wading gait is seen in -a) Bilateral dislocation of hipb) Myopathiesc) Common peroneal nerve injuryd) Unilateral dislocation of the hip \nSelect and explain. \nA. ac, B. a, C. ab, D. bc', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]