A 2-year-old child presents with a barking cough, stridor when agitated and hoarse voice. He has a low-grade fever and is managing oral intake. Oxygen saturations are 97% on air. What is the most appropriate initial treatment?ASingle dose of oral DexamethasoneBIntravenous broad-spectrum antibioticsCImmediate intubation and ventilationDNo treatment, discharge without adviceENebulised Adrenaline alone and discharge immediatelyCheck my answer