A 70-year-old man collapses in the hospital corridor. He is unresponsive and not breathing normally, with occasional gasps. According to Resuscitation Council UK guidance, which is the most appropriate immediate action?ACheck carotid pulse for 30 seconds before deciding on CPRBBegin chest compressions at 100–120 per minute after calling for helpCGive two rescue breaths, then look for a defibrillatorDPlace him in the recovery position and monitorERun to fetch the crash trolley before touching the patientCheck my answer