This type of reaction, so this is shown in diagram two. Let's suppose now we have the same spontaneous reaction that takes place to form the C three B and C three A. Now, because we don't have any nearby healthy cell, we only have bacterial cells. Those bacterial cells don't actually have any of these inhibitory or proteins to deactivate the three CB molecules. And so because of that, the C three B molecules basically go on and react with another molecule, the protein known as factor B. And then when they combine, they form the C three BBB complex.