If a non-professional antigen-presenting cell that lacks co-stimulatory molecules presents peptide:MHC complexes to a T cell specific for that peptide, then _____
a. the T cell delivers a signal to the non-professional antigen-presenting cell to activate the expression of co-stimulatory molecules.
b. the T cell begins to express the ? chain of the IL-2 receptor.
c. the T cell differentiates into a TH1 cell.
d. T-cell tolerance occurs as a result of anergy.
e. the T cell is more heavily reliant on signals transmitted through CD4 or CD8 in order to become activated.
D
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