<prompt> All of these are antigen presenting cells APCs except-B cellsT cellsDendritic cellsLangerhans cells  <response>: Antigen-Presenting CellsAPCs: APCs implies to cells that present the antigenic peptide along with MHC class II to TH cells. They may be grouped into: Professional APCs: e.g. 1.Macrophages, 2.Dendritic cells Langerhans cellsLC are members of the dendritic cells family, residing in the basal and suprabasal layers of the epidermis 3.B-cells Nonprofessional APCs: e.g. Fibroblasts skin, Thymic epithelial cells, Pancreatic beta cells, Vascular endothelial cells, Glial cells brain and Thyroid epithelial cells. 