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 70 kg man was given a drug in a dose of 100 mg/kg body weight. Its t1/2, is 10 hours, initial plasma concentration is 1.9 mg/ml. True statement is: a) CL is 0.02 litre/hr b) CL is 20 litre/hr c) k is 0.0693 d) k is 6.93 e) CL is 0.2 litre/hr \nSelect and explain. \nA. ab, B. ad, C. ce, D. ae', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]