Cell mediated immunity is provided by (A) B-Lymphocytes (B) Plasma cells (C) Interferon (D) T-Lymphocytes

T-Lymphocytes

Cell-mediated immunity is facilitated by the T-helper and cytotoxic T-cells. Cytokines secreted by the T- helper cells activate phagocytic cells which phagocytose the pathogens and kill them.

Hence, the correct option is (D)

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