Which of these is able to bind to the T cell receptor on a specific T cell?

Question

Quizplus · Accepted Answer

Only a single unique epitope on an antigen can bind to the T cell receptor on a specific T cell. This interaction is important for the activation of the T cell and for the subsequent immune response. Other epitopes on the same antigen may not necessarily bind to the T cell receptor or may bind to a different T cell receptor. Additionally, not all antigens can activate T cells, as some are recognized by other components of the immune system, such as antibodies or innate immune cells.

Which of These Is Able to Bind to the T