When is a person considered HIV-positive? A) after having a blood test and diagnosed with AIDS

B) after having been exposed to HIV but not tested

C) after showing symptoms of AIDS but not tested

D) after having a blood test and HIV antibodies are detected

I think D is the answer :

People who utilizes the progression principle will ensure their exercise program increases in frequency, intensity, time, and type. the changes need to happen gradually in order to ensure they make gains in their fitness program. a person who doesn't utilize the progression principle can still gain health benefits from exercising, but will not continue to improve in cardiovascular fitness.