Which of the following statements about performing CPR with two or more rescuers is true?
a. To reduce fatigue, rescuers should switch positions as soon as another rescuer arrives on scene. b. To reduce rescuer fatigue, rescuers should switch positions about every two minutes or when the AED is analyzing. c. While one rescuer is performing the primary assessment, the assisting responder should perform ventilations using a BVMs. d. While one rescuer is performing the primary assessment, the assisting responder should place their resuscitation mask on the victim