The human immunodeficiency virus (HIV) is able to cause widespread immunodeficiency because ________.
A. the HIV virus blocks the activation of the complement system
B. the HIV virus interferes with activation of both B cells and T cells
C. the HIV virus infiltrates the cells responsible for innate immunity, the first line of defense against pathogens
D. through infection of T cells, HIV prevents the product of antibodies against the virus
Answer: B
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