While Working at a Hospital, a Fire Begins in the Break

While working at a hospital, a fire begins in the break room. A nurse immediately removes patients from the room adjacent to the break room, sounds the fire alarm, and confines the fire by closing doors. Next, the nurse obtains the fire extinguisher. When using a fire extinguisher, the nurse should first

A) Squeeze the handles together.
B) Pull the pin found between the handles.
C) Aim the nozzle at the base of the flames.
D) Sweep the nozzle back and forth at the base of the flames.