All of the above are antigen presenting cells (APC's) except -: (A) T cells, (B) B cells, (C) Fibroblasts, (D) Dendritic cells
Answer is A. Professional antigen-presenting cells, including macrophages, B cells and dendritic cells, present foreign antigens to helper T cells, while other cell types can present antigens originating inside the cell to cytotoxic T cells Reff: Ananthanarayanan & Panikers textbook of microbiology 9th edition pg: 137