What is the purpose of the Protein S molecule in the coagulation cascade?

A To activate Protein C
B To inhibit the activity of Factor Xa
C To serve as a cofactor for Protein C in the degradation of Factors Va and VIIIa ✓
D To enhance the activity of thrombin

Explanation

Protein S serves as a cofactor to Protein C, which is essential for the degradation of Factors Va and VIIIa, thus regulating the coagulation pathway.

Source

Hematology textbooks and research articles
Hematology Hematology: Coagulation Disorders Hematology: Coagulation Disorders Medium MEDICAL Confidence: high