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A surface is so constructed that, at all points on the surface, the vector points outward. Therefore, it can be said that

A. the surface encloses a net positive charge.

B. the surface encloses a net negative charge.

C. the surface encloses zero net charge

D. the surface vector at all points on the surface is necessarily parallel to the electric field vector.

E. the surface vector at all points on the surface is necessarily perpendicular to the electric field vector .

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