A Point Charge Is Placed at the Center of a Spherical

Multiple Choice

A point charge is placed at the center of a spherical Gaussian surface.The electric flux $\phi$ _E is changed if:

A) the sphere is replaced by a cube of the same volume
B) the sphere is replaced by a cube of one-tenth the volume
C) the point charge is moved off center (but still inside the original sphere)
D) the point charge is moved to just outside the sphere
E) a second point charge is placed just outside the sphere