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A proton and an electron traveling at the same speed enter a uniform magnetic field. The...

A proton and an electron traveling at the same speed enter a uniform magnetic field. The velocity vector of each particle is perpendicular to the magnetic field. Which of the following statements best describes their motions?

The paths of both particles will curve in the same direction, but the radius of the electron's trajectory will be much larger than the radius of the proton's trajectory.
The paths of both particles will curve in same direction, but the radius of the proton's trajectory will be much larger than the radius of the electron's trajectory.
The paths of both particles will curve in opposite directions, but the radius of the electron's trajectory will be much larger than the radius of the proton's trajectory.
The paths of both particles will curve in opposite directions, but the radius of the proton's trajectory will be much larger than the radius of the electron's trajectory.
Actually, both particles will be unaffected by the magnetic field.
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