Question

what does antiretroviral therapy (art) do?
○ lowers the risk of transmitting hiv
○ cures individuals diagnosed with hiv
○ increases complications associated with hiv
○ creates a barrier to prevent the hiv infection

Explanation:

Antiretroviral therapy (ART) for HIV doesn't cure HIV (so the "cures" option is wrong), doesn't increase complications (it reduces them, so that option is wrong), and doesn't create a barrier to prevent infection (like pre - exposure prophylaxis or condoms do). ART suppresses HIV replication, which lowers the amount of HIV in the body, thus lowering the risk of transmitting HIV.

Answer:

A. lowers the risk of transmitting HIV