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': 'Tylectomy literally means? \nSelect and explain. \nA. Excision of a lump, B. Excision of LN, C. Excision of breast, D. Excision of skin', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e. Excision of a lump", 'role': 'assistant'}]