Which sentence uses the word "arbitrary" correctly?

A. In the middle of the tennis match, an arbitrary decision was needed to decide if the ball was in or out of bounds.
B. Because it could not be resolved amicably, an arbitrator was brought in to decide who was at fault in the car accident.
C. The neighbors were required to go to arbitration to determine whose property the tree was growing on.
D. The jury overruled the conviction because they believed the officer made an arbitrary arrest that was not based on evidence.