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 required for post translational modification of coagulants is : \nSelect and explain. \nA. Vitamin A, B. Vitamin C, C. Vitamin B6, D. Vitamin K', 'role': 'user'}, {'content': 'Answer: D \nExplanation: D i.e. Vitamin K', 'role': 'assistant'}]