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': 'The position of arm in anterior dislocation of shoulder is: \nSelect and explain. \nA. By the side, B. In abduction, C. In abduction, D. In external rotation', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. By the side of body', 'role': 'assistant'}]