Police Officers at the Scene of a Fire

Multiple Choice

Police officers at the scene of a fire:
I. do not need a warrant to remain in a burned building to look for injured victims.
II. do not need a warrant to remain in a burned building to investigate the cause of the fire or explosion.
III. must get a warrant to search for evidence of crime once they determine the cause of the fire.
IV. can search suspicious onlookers without a warrant.

A) I, II, III, IV
B) I, II, III
C) I, III
D) IV