Which of the following vitamins is mainly responsible for blood coagulation in human being?

উত্তর দেখান ও ব্যাখ্যা

উত্তর: (A) Vitamin K

ব্যাখ্যা

Vitamin K is needed to make clotting factors (prothrombin, factors VII, IX, X) in the liver, so it is essential for blood coagulation.