Which of the Following Describes Some of the Effects of International

Which of the following describes some of the effects of international trade?  

A)  International trade allows a country to concentrate on the goods and services that it produces most efficiently. 
B)  International trade allows a country to increase its political involvement on a global scale. 
C)  Increased international trade would improve Canada's high-tech exports but NOT its agricultural exports. 
D)  Increased international trade would increase Canada's exports and decrease its imports.