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: Gynaecology & Obstetrics
[{'content': '100% protection against conception in a lactating mother is for about : \nSelect and explain. \nA. 1 month, B. 2 weeks, C. 2 months, D. 3 months', 'role': 'user'}, {'content': 'Answer: C \nExplanation: 2 months', 'role': 'assistant'}]