What is the purpose of using a 'lectin' in hematology, specifically in relation to blood grouping?

A To enhance the reactivity of Rh antibodies
B To detect the presence of ABO antibodies
C To identify the presence of certain red blood cell antigens
D To distinguish between different types of white blood cells
Lectins are used in hematology to identify the presence of certain red blood cell antigens, such as those in the ABO blood group system.
Hematology research articles
Hematology Hematology: Blood Grouping and Crossmatching Hematology: Blood Grouping and Crossmatching Hard MEDICAL Confidence: medium