In a patient taking a hypothetical immunosuppressive drug, all adaptive responses are inhibited. All innate immune responses are still functional, although some are reduced in strength. While taking this drug, which of the following events will still occur in response to infection?
A. Production of antibodies that bind to antigens
B. Antigen interaction with lymphocytes
C. Activation of lymphocytes
D. Vasodilation of local blood vessels
E. B-cell differentiation into plasma cells
Answer: D
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