A. coagulation, white bloodcell B. coagulation, water C. white blood cells, red blood cell D. coagulation, red blood cell
Correct Answer: D
Explanation
The clumping of cells such as bacteria or red blood cells in the presence of an antibody or complement. During blood transfusions, the antibodies react with the transfused blood group(if its of different blood group), the erythrocytes clump up and stick together causing them to agglutinate
