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
"Today" sponge contains which of the following: 
Select and explain. 
A. Nonoxynol, B. Deflon, C. Femshield, D. Desogestrel
A: Nonoxynol
Answer: A: Nonoxynol 
Explanation: Nonoxynol