<prompt> CD4 cells are involved in all of the following processes, EXCEPT:Acting as a helper function for B cellsProcessing and presenting antigensProducing and releasing interleukin-2Producing and releasing interferon-gamma  <response>: CD4 cells or T cells, have all of the functions listed except for processing and presenting antigens. Ref: Kuby Immunology, 6th Edition, Page 209 