A 55-year-old man collapses in the hospital corridor. You confirm he is unresponsive and not breathing normally. According to current Resuscitation Council UK guidance, what is the most appropriate next immediate step after calling for help?ACheck carotid pulse for 30 secondsBGive five rescue breaths before any compressionsCStart chest compressions at a rate of 100–120/minDPlace the patient in the recovery positionEGive a precordial thump and wait for responseCheck my answer