37. Charge Q is spread uniformly along the circumference of a circle of radius R. A point particle withcharge q is placed at the center of this circle. The total force exerted on the particle can be calculatedby Coulomb's law:
(A) just use R for the distance
(B) just use 2R for the distance
(C) just use 2πR for the distance
(D)the result of the calculation is zero
(E) none of the above.