Four point charges are located at the corners of a square, 1.00 m by 1.00 m. On each of two diagonally opposite corners are 1.00 µC charges. On each of the other two corners are −1.00 µC charges. What is the direction of the force on each charge?

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positive charges away from away from the center of the square, negative inward toward the center

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negative charges away from away from the center of the square, positive inward toward the center

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positive and negative charges both toward the center of the square

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positive and negative charges both away from the center of the square

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no direction (net force on each charge = 0)