This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Kidney, Subject name: Pharmacology
[{'content': 'Drug of choice for imminent eclampsia is \nSelect and explain. \nA. Hydralazine, B. Labetolol, C. MgSO4, D. Methyldopa', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Labetalol and alpha-methyldopa are safe in pregnancy.Labetol is rapid acting and used in hypeensive emergencies.MgSO4 prophylaxis is used in imminent eclampsia and eclampsia.Ref: KDT 7th ed P 573', 'role': 'assistant'}]