The Following Figure Shows the Demand Curve, D, and the Supply

Multiple Choice

The following figure shows the demand curve, D, and the supply curve, S, for calculators in Barylia. The world price of calculators is $40.

-Refer to the figure above.Which of the following statements is true?

A) Barylia as a whole gained from opening up to free trade.
B) Barylia as a whole lost from opening up to free trade.
C) The buyers of calculators in Barylia gained from opening up to free trade.
D) The firms in Barylia that manufactured calculators lost from opening up to free trade.