Steve and Diana Have Recently Learned That They Are HIV

Steve and Diana have recently learned that they are HIV positive following sexual intercourse with infected partners.What changes in their behaviour should occur in the future?

A) Diane will now have sex only if her partner uses a condom.
B) Both Steve and Diane will be sure to tell future sexual partners that they are HIV positive.
C) Both Steve and Diane will stop sharing needles with other drug users.
D) All of the above.