A 60-year-old with COPD exacerbation has increased dyspnea, sputum volume, and purulence, SpO₂ 89% RA. Which statement about antibiotics is most consistent with current COPD guidance?AAntibiotics are never indicated in COPD exacerbationsBInitiate antibiotics only if procalcitonin >0.5 ng/mLCAntibiotics are indicated given increased dyspnea, volume, and purulenceDAntibiotics only if ICU mechanical ventilation is requiredEFive-day antibiotic courses are contraindicatedCheck my answer