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
Contraceptive vaginal foam tablet "today "contains: 
Select and explain. 
A. Nonoxynol 9, B. Octoxynol 9, C. Menfegol, D. None of the above
A: Nonoxynol 9
Answer: A: Nonoxynol 9 
Explanation: TODAY: It contains 1 gm of NONOX 4 NOL-9