A Charge Is Initially Surrounded by a Cubic Gaussian Surface

Multiple Choice

A charge is initially surrounded by a cubic Gaussian surface whose volume is d³. The cubic surface is replaced by a spherical surface of radius d/2. The net flux of the spherical surface is

A) greater than the net flux through the cube.
B) less than the net flux through the cube.
C) equal to the net flux through the cube.
D) none of the above.