If the flux of the electric field through a closed surface is zero, then: (a)the electric field must be zero every-where on the surface (b)the total charge inside the surface must be zero (c)the electric field must be uniform throught the closed surface (d)the charge outside the surface must be zero

Options

A. the electric field must be zero every-where on the surface
B. the total charge inside the surface must be zero
C. the electric field must be uniform throught the closed surface
D. the charge outside the surface must be zero