Behaviors that will protect the largest number of people against HIV include​

A) ​limiting the number of sex partners and using condoms.
B) ​avoiding giving blood and having blood transfusions.
C) ​avoiding drug use and avoiding homosexuals.
D) ​avoiding people who have AIDS entirely.

Limiting the number of sex partners and using condoms are effective methods of preventing the spread of HIV during sexual activity, as well as reducing the risk of contracting the virus from an infected partner. Avoiding drug use and avoiding homosexuals are not effective prevention strategies, as HIV can affect anyone regardless of sexual orientation or drug use. Avoiding people who have AIDS entirely is discriminatory and does not address the root cause of the spread of the virus.