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': 'Commonest cuase of urethral stricture in a young person is - \nSelect and explain. \nA. Trauma, B. Gonococcal, C. Syphilis, D. Tuberculosis', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Trauma Post gonococcal stricture is less common since the introduction of effective antibiotic", 'role': 'assistant'}]