A pump draws water of density \(\rho\) from a large open reservoir, where the water is initially at rest, and delivers it at a constant volume flow rate \(Q\) through a pipe of uniform cross-sectional area \(A\). The water is discharged into the atmosphere at an exit located a vertical distance \(h\) above the reservoir surface. Assuming energy losses due to friction are negligible, which of the following expressions represents the minimum power delivered by the pump to the water?