This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Pharmacology
[{'content': 'Half life of Digoxin is? \nSelect and explain. \nA. 12 hours, B. 24 hours, C. 36 hours, D. 48 hours', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. (c) 36 hoursRef: Goodman Gillman llthed /573', 'role': 'assistant'}]