Based on Knowing the History of the HIV/AIDS Pandemic, and of Efforts

Multiple Choice

Based on knowing the history of the HIV/AIDS pandemic, and of efforts to track its spread, you can conclude that it is likely that the incidence of HIV/AIDS among transfusion recipients has

A) increased since the discovery of HIV.
B) decreased since the discovery of HIV.
C) remained the same since the discovery of HIV.
D) never been more than a few individuals per year.