You have prepared glass beads coated with rabbit anti-Ig antibodies that were isolated from rabbits that were immunized with mouse immunoglobulin (Ig). If you incubate a sample of mononucleated cells from mouse spleen with these beads, which of the following cell types do you think would stick to the beads?
A) Only macrophages B) Only B cells C) Only cytotoxic T cells D) B cells and cytotoxic T cells E) B cells and macrophages