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
[{'content': 'Not vit K dependent clotting factor is ? \nSelect and explain. \nA. II, B. VII, C. VIII, D. IX', 'role': 'user'}, {'content': "Answer: C \nExplanation: 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').", 'role': 'assistant'}]