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': 'Narrowest pa of the urethra is? \nSelect and explain. \nA. External meatus, B. Membranous urethra, C. Bulbous urethra, D. Internal meatus', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., External meatus", 'role': 'assistant'}]