A 24-year-old man collapses while working outdoors on a very hot day. He is confused, hot to touch, with a core temperature of 40.5 °C, tachycardic and hypotensive. What is the most appropriate immediate management?AWrap him in blankets to reduce shiveringBGive antipyretics such as paracetamol and observeCActive external cooling (e.g. ice packs, evaporative cooling) and IV fluid resuscitationDRestrict fluids to prevent cerebral oedemaENo cooling is required; heat stroke resolves spontaneouslyCheck my answer