Direction of $g$ acceleration ball projection

Why is the answer A? Because I thought it's C, because g acts downward and since the ball is moving downwards towards N, acceleration should be "g" and not "-g" as it was when it was being thrown up at L. Can someone please explain?

• "...as it was when it was being thrown up at L." You should read position L as a point immediately after the ball has been released and not about the acceleration from the throw. – BowlOfRed Jan 5 '17 at 7:41
• Speed is not a vector quantity so the sign is unchanged; acceleration is, and it is always directed downwards, it does not depend on the direction of motion – tomph Jan 5 '17 at 7:43