For the Condom to Be Most Effective What Is Needed

Multiple Choice

For the condom to be most effective what is needed?

A) To be carefully rolled onto the penis just before ejaculation.
B) The penis should be withdrawn after ejaculation soon after the man's erection has begun to subside.
C) It must be put on before intromission and the penis must be withdrawn soon after ejaculation.
D) Spermicide-coated condoms should be used which helps create an alkaline vaginal environment which is harmful to sperm.