Answer:
HIV can be transmitted only in certain body fluids from a person who has HIV. These fluids are blood, semen, pre-seminal fluids, rectal fluids, vaginal fluids, and breast milk. To reduce your risk of HIV, use condoms correctly every time you have sex. Don't inject drugs.
So you see there could be two answers here.
It could be D or C.
Now here is where you make that decision :)
