What is the electric field on the surface of a thin conducting spherical shell containing uniform charge q?

The field is

            E  =  1 / (4 pi ε₀)    Q / R²        directed radially outward from
                                                            the center of the shell.

R is the radius of the spherical shell.

Notice that the field is exactly the same as the field due to a point-charge
with magnitude 'Q' that's located at the center of the sphere.

Edit the post so i can see the letters for each answer, and increase the points required so i'd be able to answer it.