When the Na⁺/ K⁺ pump Moves Its Bound Molecules of Na⁺

When the Na⁺/ K⁺ pump moves its bound molecules of Na⁺ to the outside of the membrane, it

A) releases the bound ATP to return to its normal confirmation.
B) pumps more K⁺ back into the cell than the amount of Na⁺ that just came out.
C) cannot return to the inside empty -handed, so it must bind two K⁺ first.
D) immediately returns to the inside of the cell, ready to transport more Na⁺ back outside.
E) binds to ATP to release the energy required to power the return trip.