An MHC class II/antigen complex on the surface of an antigen-presenting cell (APC) binds to a T-cell receptor. What results from this interaction?
A. Other immune cells are stimulated to respond to the antigen.
B. The T cell responds by directly destroying the APC.
C. Other immune cells are inhibited.
D. The antigen is phagocytized by the T cell.
Answer: A
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