【正确答案】
C
【答案解析】It's essential that AIDS clients follow safer-sex practices to prevent transmission of the human immunodeficiency virus. Although it's helpful if AIDS clients avoid using recreational drugs and alcohol, for purposes of avoiding transmission it's more important that IV drug users use clean needles and dispose of used needles. Whether the AIDS client chooses to tell anyone about an AIDS diagnosis is the client's decision; there's no legal obligation to do so.