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: Social & Preventive Medicine
TODAY, failure rate is 
Select and explain. 
A. 0-5/100 woman years, B. 5-10/100 women years, C. 0-1/100 woman years, D. 9-20/100 women years
D: 9-20/100 women years
Answer: D: 9-20/100 women years 
Explanation: None