A 34-year-old woman suddenly develops generalised urticaria, wheeze, hoarse voice and hypotension 10 minutes after receiving intravenous Co-amoxiclav in the day unit. She weighs 70 kg. What is the most appropriate first-line drug treatment?AChlorphenamine 10 mg IV.BHydrocortisone 200 mg IV.CAdrenaline 0.5 mg of 1:1000 intramuscularly in the anterolateral thigh.DAdrenaline 1 mg of 1:10,000 intravenously as a rapid bolus.ESalbutamol 5 mg via nebuliser driven by air only.Check my answer