A person’s blood group is determined by: A. the agglutinogens circulating in their plasma B. the antigens on the surface of their red blood cells C. the antibodies on the surface of their red blood cells D. the agglutinins circulating in their plasma
Option B. Antigens are at the surface of rbc. Antibodies circulate withinside the blood circulate and react with (agglutinate) their appropriate antigen.
