And so that individual will not produce antigen, antigen A antibodies. They will only produce antigen B antibodies because they do not have any antigen B proteins on the membrane. On the other hand, let's focus on the blood type B. So if an individual has blood type B, that means they have a gene that codes for antigen B. And all the red blood cells will contain membrane bound antigen B glycoproteins as shown in green. And so this will be the self antigen.