A postpartum patient with preeclampsia with severe features has persistent BP 168/112 mm Hg 2 hours after delivery and a severe headache. She is breastfeeding and has normal renal function. What is the most appropriate immediate management?AObserve for 4 hours; postpartum hypertension often resolvesBStart ACE inhibitor now as first-line emergency therapyCInitiate magnesium sulfate infusion and treat severe-range BP promptly with IV labetalol, hydralazine, or oral nifedipineDUse diuretics only to lower BPEStart heparin for seizure prophylaxisCheck my answer