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': "In the treatment of femoral hernia Lockwood's operation refers to - \nSelect and explain. \nA. Low operation, B. High operation, C. Inguinal operation, D. Laparoscopic surgery", 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]