10. The sodium-potassium pump is termed electrogenic because
(A) it hydrolyzes ATP.
(B) it pumps positive charges out of the cell and negative charges into the cell.
(C) it pumps three positive charges out of the cell for every two positive charges it pumps into the cell.
(D) it pumps H+ out of the cell along with Na+.
(E) it pumps electrons into the cell.