A Proton Is Undergoing Uniform Circular Motion Perpendicular to a Magnetic

A proton is undergoing uniform circular motion perpendicular to a magnetic field with B = 0.240 T as shown.The linear velocity of the proton is 4.60 * 10⁶ m/s.What is the radius of the orbit of the proton (in m) ? The mass of a proton is 1.673 * 10^-27 kg.Ignore any relativistic effects.

A) 0.123
B) 0.139
C) 0.157
D) 0.177
E) 0.200