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: Surgery
[{'content': "A Bennet's fracture is difficult to maintain in reduced position because of the pull of \nSelect and explain. \nA. Extensor pollicis longus, B. Extensor pollicis brevis, C. Abductor pollicis longus, D. Abductor pollicis brevis", 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. Abductor pollicis longus', 'role': 'assistant'}]