And what agglutination means is it's when many of these antibody antigen complexes get together and they basically inhibit that pathogenic agent from acting and infecting our cells. And so eventually that conglomerate of antibody antigen complexes is engulfed by our phagocytic cells. And finally we also have the promotion of formation of antibodies. So I didn't discuss this. But also what happens is once the C three B ceases to exist, sees it to function, the C three B is basically degraded. And some of the fragments that are produced when we degrade C three B go on to basically activate cells such as derivative cells, which then go on to activate plasma cells to basically produce antibodies.