Which of the Following Actions Constitutes an Assault

Which of the following actions constitutes an assault?

A) pointing an unloaded gun at another who does not know whether or not the gun is loaded
B) a rude gesture from another motorist
C) a car accident in which you are hit by an impaired driver
D) bumping into another person in a crowded hallway
E) a bystander struck by a ball during a baseball game