What is a shift in baseball?

A: When the pitcher moves to a different part of the rubber, so the angle of the pitch has been shifted slightly.


B: When the batter moves to different part of the batters box, to change the way the ball will approach him from the pitcher.


C: When a team moves their defense to one side of the field because a batter is more likely to hit the ball there.


D: When the catcher moves toward 2nd base, to give the defense a better chance at catching a ball hit that way.