In Cases of HIV Infection, the "Window Period" Refers to the Time

Multiple Choice

In cases of HIV infection, the "window period" refers to the time between:

A) entry of the virus into the blood and the initial manifestations.
B) entry of the virus into the body and the appearance of antibodies in the blood.
C) entry of the virus into the body and a significant drop in CD4 T-helper lymphocyte count.
D) diagnosis of "HIV positive" and diagnosis of "AIDS."