when the antigens on the surface of red blood cells react with antibodies in the serum, the cells clump…

when the antigens on the surface of red blood cells react with antibodies in the serum, the cells clump together. this process is called: clotting agglutination hemorrhage anemia
Answer
Brief Explanations:
Agglutination is the process where antigens on red - blood cells react with antibodies in serum causing cell clumping. Clotting involves the formation of a fibrin clot, hemorrhage is bleeding, and anemia is a deficiency of red - blood cells or hemoglobin.
Answer:
Agglutination