I believe thats true.
People with cancer get radiation treatments to treat their cancer, it doesnt cure them but it does help treat the cancer.
I believe it is B.) One every 3-5 seconds. This includes all mirrors, not just the rear view, though I may be wrong, sorry if I am!!
Answer:
1) Human immunodeficiency Virus
2) Acquired Immune Deficiency
3) Pandemic
4) T cells
5) HIV/AIDS
6) asymptomatic stage
7) HIV-antibody test
8) HIV Positive
9) drug combination therapy
10) Condoms
Explanation: