Refer to the Figure Below to Answer the Following Questions

Multiple Choice

Refer to the figure below to answer the following questions. Figure 7.2.2
The figure shows the market for helicopters in Canada,where D is the domestic demand curve and S is the domestic supply curve.The world price is $36 million per helicopter.
-In Figure 7.2.2,if the economy moves from no trade to international trade,total surplus in Canada ________ by ________.

A) decreases;$2.56 billion
B) increases;$4.8 billion
C) decreases;$3.6 billion
D) decreases;$1.92 billion
E) increases;$1.92 billion