(A), (B) and (C) show three different situations of the surface of liquid contained in a vessel that is moving towards right.
These figures indicate, respectively, that the vessel is :

• A

  moving with uniform speed, accelerating, decelerating

• B

  moving with uniform speed, decelerating, accelerating

• C

  accelerating, decelerating, moving with uniform speed

• D

  decelerating, accelerating, moving with uniform speed