When a Fire Extinguisher Is Needed,you Should

When a fire extinguisher is needed,you should:
1) pull the pin and squeeze the handle.
2) aim the nozzle at the base of the fire.
3) aim steadily where the fire appears hottest.
4) use a sweeping motion from side to side.

A) 1 and 2 only
B) 1 and 3 only
C) 1 and 4 only
D) 1, 2, and 4 only