A 59-year-old with IDDM presents with a plantar ulcer probing to bone and fetid drainage. Best initial management step with antibiotics?AEmpirically cover Pseudomonas for all diabetic foot infectionsBEmpirically cover MRSA onlyCTailor empiric therapy to likely gram-positive pathogens; add gram-negative/anaerobe coverage for moderate-severe infections and obtain urgent surgical evaluationDDelay antibiotics until cultures returnETopical antibiotics sufficeCheck my answer