The correct word for "C" in C.A.B. (the CPR sequence) is Circulation or Compressions. In the CPR context, "C" stands for Circulation (Compressions) , which emphasizes the critical step of performing chest compressions to restore blood flow to vital organs during cardiac arrest. The American Heart Association updated the sequence to prioritize chest compressions first, followed by airway and breathing, to increase the chances of survival.
