How do the blood types A, B, AB, and O differ in terms of antigens and antibodies present?

Blood types A, B, AB, and O differ in the presence of specific antigens and antibodies. Type A blood has A antigens and anti-B antibodies, type B has B antigens and anti-A antibodies, type AB has both A and B antigens with no antibodies, and type O has no antigens but contains both anti-A and anti-B antibodies.