On a Graph Depicting a Head and Shoulders Top Pattern

On a graph depicting a head and shoulders top pattern, the neckline support:

A) indicates a bull market when it is pierced.
B) is the trend line that existed prior to the head and shoulders pattern appearing.
C) is a straight line connecting the high points of the left and right shoulders.
D) indicates a reversal signal anytime it is broken through in a downward direction.
E) is a line drawn connecting the humps created by the left and right shoulders.