The drawing below shows a hydroelectric power plant near a dam. When the gate is opened, river water flows into the power plant through a large pipe that runs through the dam.
Gate
Plant
Dam
What transformation of energy is taking place when the gate is opened?
A potential energy to kinetic energy as the water level rises behind the gate
OB. kinetic energy to potential energy as the water flows into the plant
C kinetic energy to potential energy as the water level lowers behind the dam
OD potential energy to kinetic energy as the water flows into the plant