If ∮ₛ E⃗·dS⃗ = 0 over a surface, then:

Options

• Option A

  all charges must necessarily be inside the surface

• Option B

  the electric field inside the surface is necessarily uniform

• Option C

  the number of flux lines entering the surface must equal the number of flux lines leaving it

• Option D

  the magnitude of electric field on the surface is constant