Question

which describes hiv/aids?
answers: a - d
a an acute disease
b a bacterial disease
c a disease of the immune system
d a rare disease

Explanation:

• Option A: HIV/AIDS is a chronic disease, not acute (acute diseases have rapid onset and short duration, while HIV/AIDS progresses over time with long - term effects), so A is incorrect.
• Option B: HIV is a virus, not a bacterium, so HIV/AIDS is a viral disease, not a bacterial one, so B is incorrect.
• Option C: HIV (Human Immunodeficiency Virus) attacks the immune system, specifically CD4 cells (T - helper cells), and AIDS (Acquired Immunodeficiency Syndrome) is the advanced stage of HIV infection where the immune system is severely damaged. So it is a disease of the immune system, C is correct.
• Option D: HIV/AIDS is not a rare disease; it has affected millions of people worldwide, so D is incorrect.

Answer:

C. A disease of the immune system