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
100% protection against conception in a lactating mother is for about : 
Select and explain. 
A. 1 month, B. 2 weeks, C. 2 months, D. 3 months
C: 2 months
Answer: C: 2 months 
Explanation: 2 months