A Point Charge (5

A point charge (5.0 pC) is located at the center of a spherical surface (radius = 2.0 cm) , and a charge of 3.0 pC is spread uniformly upon this surface. Determine the magnitude of the electric field 1.0 cm from the point charge.

A) 0.72 kN/C
B) 0.45 kN/C
C) 0.63 kN/C
D) 0.90 kN/C
E) 0.18 kN/C