A solid metal sphere of radius 3.00 m carries a total charge of -3.50C. What is the

A solid metal sphere of radius 3.00 m carries a total charge of -3.50μC. What is the magnitude of the electric field at a distance from the sphere’s center of?
(a) 0.15m,
(b) 2.90m,
(c) 3.10m,
(d) 6.00m?
(e) How would the answers differ if the sphere were a thin shell?