This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Haematology, Subject name: Medicine
[{'content': 'Vitamin K-dependent clotting factors include all the following except - \nSelect and explain. \nA. Factor II, B. Factor VIII, C. Factor IX, D. Factor X', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Vitamin K acts as a cofactor in the formation of 6 prothrombin complex proteins synthesized in the liver: factor II,VII ,IX ,X ,protein C & protein S.Reference:Harsh mohan textbook of pathology sixth edition pg no 336', 'role': 'assistant'}]