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
Following vasectomy for family planning, a patient should be advised to use some other method of contraception, till : 
Select and explain. 
A. Removal of all sutures, B. Pain completely subsides, C. Two weeks, D. None
D: None
Answer: D: None 
Explanation: None