Which FBD is INCORRECT based on the gif

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.

Name two kinds of practical electric pumps.

If anyonee has done the momentum lab practical in physics can you give me the answers i am s lostt rnn : (