This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunology, Subject name: Microbiology
All of the above are antigen presenting cells (APC's) except - 
Select and explain. 
A. T cells, B. B cells, C. Fibroblasts, D. Dendritic cells
A: T cells
Answer: A: T cells 
Explanation: 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