This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Drugs, Subject name: Medicine
[{'content': 'Clevidipine is? \nSelect and explain. \nA. ACEI, B. Calcium Channel blocker, C. Alpha Blockers, D. ARB', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B. Calcium Channel blockerIt is dihydropyridine Ca2+ channel blocker indicated for the reduction of blood pressure when oral therapy is not feasible or not desinable.', 'role': 'assistant'}]