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: Pharmacology
[{'content': 'All of the following are parenteral Direct Thrombin Inhibitor except \nSelect and explain. \nA. Lepirudin, B. Bivalirudin, C. Argatroban, D. Dabigatran', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Dabigatran & Ximelagatron are Oral Direct Thrombin Inhibitors.', 'role': 'assistant'}]