In sports, what does it mean for a player to be considered "out of bounds"?
A) The player is touching the sideline or end line but is still considered in play
B) The player is touching anything other than another player or game official that is on or outside the sideline or end line, and remains out of bounds until re-entering the field with all body parts touching the field and none touching out of bounds
C) The player is standing still on the sideline waiting for a substitution
D) The player is within the boundary lines but has not touched the ball in play