Which of the following methods of contraception,when used alone,has been found to be the least effective?

Question

Quizplus · Accepted Answer

Spermicides have been found to be the least effective method of contraception when used alone. They are only about 72% effective with typical use, meaning that 28 out of 100 women using this method will become pregnant within a year. Therefore, it is recommended to use spermicides in combination with barrier methods such as condoms to increase their effectiveness.

Which of the Following Methods of Contraception,when Used Alone,has Been