Which Activity Would Likely Put an Individual the Most At-Risk

Which activity would likely put an individual the most at-risk in terms of the possibility of contracting the HIV virus?

A) Using a condom and spermicidal lubricant during anal intercourse,but no internal ejaculation.
B) Being female,not using a condom during vaginal sexual intercourse and having a number of sexual partners who use drugs.
C) Not using a condom during anal sexual intercourse.
D) Being a bisexual who is married but has also has sexual intercourse outside the marriage using a condom.