In the diagram, the supply of a good shifts from S S\,S to S1S_1S1.
What area represents the change in consumer surplus?
P1EFP2P_1 E F P_2P1EFP2
P2FQ2P_2 F Q_2P2FQ2
P1ESP_1 E SP1ES
EFS1SE F S_1 SEFS1S