8. Consider Gauss's law: \( \oint_{S} \vec{E} \cdot d\vec{A} = q/\epsilon_0 \).
(A) \( \vec{E} \) must be the electric field due to the enclosed charge
(B) if \( q = 0 \) then \( \vec{E} = 0 \) everywhere on the Gaussian surface
(C) if the charge inside consists of an electric dipole, then the integral is zero
(D) \( \vec{E} \) is everywhere parallel to \( d\vec{A} \) along the surface
(E) if a charge is placed outside the surface, then it cannot affect \( \vec{E} \) along the surface