Question

hiv infects ____________. a b cells b cd4 (helper t cells) c cd8 (cytotoxic t cells) d memory t cells

Explanation:

HIV (Human Immunodeficiency Virus) primarily targets and infects CD4+ helper T cells. These cells play a crucial role in the immune system by coordinating immune responses. B cells are involved in antibody production and are not the main target of HIV. CD8+ cytotoxic T cells are responsible for killing infected cells but are not the primary target of HIV infection. Memory T cells are a type of T cell that remembers previous infections, and while HIV can affect them, the primary target is CD4+ helper T cells.

Answer:

B. CD4 (helper T cells)