Please explain and solve - not sure I am right

A solid silver cube rests on a wooden table in a region where a uniform external electric field is directed horizontally from left to right. What can be said concerning the charge on the left-hand surface of the cube? The left-hand surface is charged negatively. O The left-hand surface's charge cannot be determined without further information. O The left-hand surface is charged positively. The left-hand surface is neutral. 4 points Saved