This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Natural Methods, Barrier Methods, IUDs, OCPs, Subject name: Social & Preventive Medicine
[{'content': 'Natural membrane condom protects against: \nSelect and explain. \nA. Conception, B. STIs, C. Both of the above, D. None of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: - Natural membrane condoms are made up of cecum of lamb, and protect only against pregnancy/ conception. - It doesnot protect against STI, as viruses can easily pass through the pores.', 'role': 'assistant'}]