12. A positive frictionless point charge Q is fixed on a very large horizontal frictionless tabletop. A second positive point charge q is released from rest near the stationary charge Q and is free to move. Which statement describes the motion of q after it is released?
(A) Its speed will be greatest just after it is released.
(B) As it moves farther and farther from Q, its speed will keep increasing.
(C) As it moves farther and farther from Q, its acceleration is zero just after it is released.
(D) Its acceleration will keep increasing.
(E) None of the above.