The answer would be C. A person who practices abstinence but drinks heavily would have the least risk of getting an STI. This type of disease is acquired by doing any type of unprotected sex with a person who has STI. The best way to prevent having this illness is to practice abstinence. And avoid any actions that might lead you to acquiring STI. People are at a higher risk of acquiring this if the a person has more than one sex partner, don't practice safe sex and sharing needles.
