Answer
(b) No, because it will move around a different circle in a counterclockwise direction.
Work Step by Step
The motion of a charge particle moving in a uniform magnetic field is governed by the magnetic force acting on that particle. The direction of magnetic force is always perpendicular to both the velocity of the charge particle and the magnetic field. If the velocity of the particle is reversed, the direction of the magnetic force will be changed according to the right hand rule. Thus, a particle which is circulating in clockwise direction will move around a different circle in a counterclockwise direction after reversing its velocity.