This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Hypolipidemic, Subject name: Pharmacology
[{'content': 'Longest Tl/2 among following - \nSelect and explain. \nA. Cerivastatin, B. Rosuvastatin, C. Atorvastatin, D. Simvastatin', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Rosuvastatin", 'role': 'assistant'}]