For the Condom to Be Most Effective

Multiple Choice

For the condom to be most effective,

A) it needs 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B) the penis should be withdrawn after ejaculation soon after the man's erection has begun to subside.
C) it must be put on before intromission and the penis must be withdrawn soon after ejaculation.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 help change the vaginal environment to be more alkaline and harmful to sperm.