T cells, which compromise about 80% of circulating lymphocytes, are the primary cells that provide:
A. antigens
B. plasma cells
C. cell-mediated immunity
D. antibodies
c
Rationale: T cells comprise approximately 80% of circulating lymphocytes. Cytotoxic T cells directly attack foreign cells or body cells infected by viruses. These lymphocytes are the primary cells that provide cell-mediated immunity.
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