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
Nonoxynol - 9 (marketed as 'Today') is a/an : 
Select and explain. 
A. Hormonal contraceptive, B. Intrauterine contraceptive, C. Barrier ccntraceptive, D. Post - coital contraceptive
C: Barrier ccntraceptive
Answer: C: Barrier ccntraceptive 
Explanation: Barrier ccntraceptive