A Hollow Metal Sphere Has a Total Charge of 100

A hollow metal sphere has a total charge of 100 µC. If the radius of the sphere is 50 cm, the electric field intensity at a distance of 3.0 m from the surface of the sphere is approximately

A) 3.0 × 10⁵ N/C.
B) 2.6 × 10⁵ N/C.
C) 1.0 × 10⁵ N/C.
D) 7.4 × 10⁴ N/C.
E) 3.6 × 10⁶ N/C.