300 S' S 250 200 PRICE 150 100 50 D D 25 50 75 100 125 150 QUANTITY Refer to Figure 7-5. If the demand curve is D and the supply curve shifts from S' to S, what is the change in producer surplus? a. Producer surplus decreases by $1,875. b. Producer surplus increases by $1,875. c. Producer surplus decreases by $625. d. Producer surplus increases by $625. Icon Key