Which Describes the Sequence of Events When a Firearm Is

Which describes the sequence of events when a firearm is discharged? 1) primer ignites the gunpowder
2) gunpowder explodes
3) Firing pin impacts primer cup
4) bullet moves down the gun barrel
5) bullet is expelled from the shell casing

A) 1,2,3,4,5
B) 5,4,3,2,1
C) 3,1,2,5,4
D) 5,4,1,2,3
E) 3,5,4,2,1