Emergency Response Personnel Arrive at the Site of a Collapsed

Emergency response personnel arrive at the site of a collapsed building. Some victims are walking away from the building, while others are lying on the ground around the perimeter. If implementing reverse triage, what should the emergency personnel do first?

A) Identify one safe location for all ambulatory victims to be assessed and observed.
B) Systematically assess each victim lying on the ground and assign a color.
C) Enter the building to locate other victims who might not have been able to leave before the collapse.
D) Transfer the victims on the ground to stretchers and send them to the local emergency department.