Capping of B-cell receptors on the surface of an antigen-exposed B cell immediately causes
A) VDJ gene switching, recombination, and hypermutation. B) neutrophil phagocytosis of the antigen. C) complement cascade signaling and antigen destruction. D) cell-signaling cascade, inducing cell proliferation and differentiation. E) helper T-cell proliferation and regulatory T-cell differentiation.