What is the primary difference between a do-list checklist and a challenge-response checklist?
A. When the checklist items are performed. Items on a do-list checklist are performed as the checklist is read, while items on a challenge-response checklist are performed before the checklist is read (and then verified using the checklist).
B. The person reading the checklist. Do-list checklists are read by the PF, while challenge-response checklists are read by the PM.
C. Whether the PF has to make a callout. A challenge-response checklist requires the PF to respond with a callout after performing a checklist item, while a do-list checklist does not.