All of the Following Statements About Agglutination Are True Except

Multiple Choice

All of the following statements about agglutination are true except

A) Is defined as the aggregation of particulate matter caused by combination with a specific antibody
B) Is the visible endpoint of antigen-antibody reactions for blood bank testing
C) Is an irreversible reaction between antigen and antibody
D) Is thought to be a two-step process