good day, please select all correct options:
Interferon-gamma (IFN-γ)
A. activates macrophages.
B. is secreted by natural killer (NK) cells.
C. lyse virus-infected cells.
D. is secreted by B-cells.
E. is an opsonin.
(A). activates macrophages.
(B). is secreted by natural killer (NK) cells.
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