What is the primary function of von Willebrand factor in blood coagulation?

A To act as a cofactor for factor VIII ✓
B To stimulate the production of erythropoietin
C To inhibit the activity of plasminogen activator
D To enhance the adhesion of neutrophils to endothelial cells

Explanation

Von Willebrand factor is a protein that plays a crucial role in blood coagulation by acting as a cofactor for factor VIII and facilitating platelet adhesion to damaged endothelium.

Source

Robbins and Cotran Pathologic Basis of Disease
Hematology Hematology: Blood Components Hematology: Blood Components Medium MEDICAL Confidence: high