Drivers Are Returning to the Road. That Is Good News for Corn Growers.

Corn prices have hit their highest levels in almost eight years as drivers returning to the road following the pandemic are increasing the demand for ethanol.

Source: Source: wsj$.$com, March$30,2021$

The graph shows the market for corn in a poor developing country with a comparative advantage in producing corn.

What are the changes in consumer surplus and producer surplus when the world price of corn rises?

Question content area bottom left

Part $1$

Consumer surplus$\_\_\_\_\_\_\_$ and producer surplus$\_\_\_\_\_\_\_.$

A$.$

decreases by area C; increases by area A$+$ B

B$.$

increases by area B; decreases by area B$+$ D

C$.$

decreases by area B; increases by area B$+$ D

D$.$

decreases by area B$+$ D$$; increases by area E