The Most Recent Studies of Lifetime Medical Costs of Treating

The most recent studies of lifetime medical costs of treating AIDS

A) have shown a significant increase in the estimates due to earlier diagnosis.
B) have shown a significant increase due to the use of new drugs including protease inhibitors.
C) have been revised downward due to shorter and less frequent hospital stays.
D) conclude that costs will likely fall in the future die to breakthrough research in prevention.
E) all of the above.