There Is a Radiologic Dispersion Bomb (Dirty Bomb) Explosion in a Subway

There is a radiologic dispersion bomb (dirty bomb) explosion in a subway station. In what order should the nurse deliver patient care at the scene of the explosion?
A) Begin direct patient care for complaints of fatigue and nausea.
B) Decontaminate clothing of patients.
C) Assess patients for burns and blunt trauma.
D) Evacuate patients from the exposure area.
E) non of the above.