Final answer:
Macrophages, dendritic cells, and B cells are the antigen-presenting cells that perform the process of antigen presentation to T cells.
Step-by-step explanation:
The process of antigen presentation to T cells is performed by macrophages, dendritic cells, and B cells.
These cells are called antigen-presenting cells (APCs) because they have the ability to present antigens specifically for the purpose of activating T cells.
Class II MHC molecules, which are found on only macrophages, dendritic cells, and B cells, play a crucial role in antigen presentation.