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': 'A volunteer Ram will receive a new drug in a phase I clinical trial. The clearance and the volume of distribution of the drug in Ram are 1.386 I/hr and 80 L respectively. The half life of the drug in him would be approximately: \nSelect and explain. \nA. 83 hr, B. 77 hr, C. 40 hr, D. 0.02 hr', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]