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: Forensic Medicine
[{'content': 'Barrier method is: JIPMER 13 \nSelect and explain. \nA. Oral contraceptive pill, B. Intrauterine devices, C. Spermicidal, D. Tubectomy', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. Spermicidal', 'role': 'assistant'}]