This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
Not vit K dependent clotting factor is ? 
Select and explain. 
A. II, B. VII, C. VIII, D. IX
C: VIII
Answer: C: VIII 
Explanation: Ans. is 'c' i.e., VIIIVit K acts as a cofactor at a late stage in the synthasis of coagulation factors by liver - Prothrombin (factor II), Factor VII, IX and X (also protein 'C' & Protein '5').