The activation of helper T cells is likely
A) when an antigen is displayed by a dendritic cell.
B) when a cytotoxic T cell releases cytokines.
C) when natural killer (NK) cells come in contact with a tumor cell.
D) in the bone marrow during the self-tolerance test.
E) when B cells respond to T-independent antigens.

Question

Quizplus · Accepted Answer

Helper T cells require recognition of an antigen presented by an antigen-presenting cell, such as a dendritic cell, in order to become activated.

The Activation of Helper T Cells Is Likely