In Addition to Dendritic Cells and Macrophages,B Cells Can Also

In addition to dendritic cells and macrophages,B cells can also act as antigen-presenting cells.  This occurs when ________.

A) the antigen is a molecule with a simple,repeating structure and evokes an immune response as a T-cell-independent antigen
B) the B cell engulfs the antigen and presents it to the T helper cell
C) the B cell engulfs the antigen and presents it to the T cytotoxic cell
D) the antigen binds to the B cell and after processing,it is presented to the dendritic cells and macrophages