Which of the Following Statements Is True

Which of the following statements is true?

A) The United States is more dependent on foreign trade than is the United Kingdom.
B) Imports and exports account for over one-half of the GDP of Belgium.
C) France is the leading exporting country, accounting for 10 percent of total world exports.
D) Because the cost of labor used on farms is so high, the United States exports very little of its wheat, rice and corn crops.