A 64-year-old man is admitted with COVID-19 pneumonia. He requires 4 L/min oxygen to maintain saturations at 93% on air and has no contraindications to steroids. What is the most appropriate pharmacological treatment in addition to supportive care?AHigh-dose intravenous Methylprednisolone 1 g dailyBOral Dexamethasone 6 mg once daily for up to 10 daysCNo steroid therapy is indicated in COVID-19DHigh-dose oral Prednisolone 60 mg once dailyEInhaled Budesonide onlyCheck my answer