All are vitamin K dependent clotting factors of hepatic origin except
High-Yield Explanation
Vitamin K has an impoant role in the blood clotting process. It brings about the posttranslational modification of ceain blood clotting factors clotting factor II (prothrombin), factor VII (SPCA) factor IX (Christmas factor) factor X (Stua prower factor) they are synthesized as inactive precursors (zymogens) in the liver ref DM Vasudevan 8th ed page 462