Which Type(s)of Antigen-Presenting Cell Can Activate T Cells

Question

Which type(s)of antigen-presenting cell can activate T cells?
A)Macrophages
B)B cells
C)Dendritic cells
D)All of the choices are correct.

Accepted Answer

All three types of antigen-presenting cells (macrophages, B cells, and dendritic cells) are capable of activating T cells. They do so by presenting antigen fragments on their surface in association with MHC molecules, which can then be recognized by T cell receptors. Activation of T cells by antigen-presenting cells is important for the development of adaptive immune responses against infections and other pathogens.