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: Biochemistry
[{'content': 'Vitamin K dependent clotting factor is: \nSelect and explain. \nA. Factor VII, B. Factor I, C. Factor XI, D. Factor XII', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Factor VII', 'role': 'assistant'}]