Answer: The main three antigen-presenting cells are B cells, dendritic cells, and macrophages.
Explanation: B cell: It makes antibodies and it is a type of white blood cell. It develops from stem cells.
Dendritic cells: These provide information about the fight against invasive pathogens.
Macrophages: It is an example of a white blood cell. It kills the microorganisms. It enhances the action of other immune system cells.