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
Which one of the following is the contraceptive method of choice for a commercial sex worker : 
Select and explain. 
A. OC pills, B. IUCD, C. Tubectomy, D. Barrier method
D: Barrier method
Answer: D: Barrier method 
Explanation: Barrier method