Which of the Following Is Correct

Multiple Choice

Which of the following is correct?

A) ​U.S.International trade represents about 50 percent of U.S.GDP.
B) ​Less than 5 percent of world output is sold in a country different from the one in which it is produced.
C) ​Without tariff protection the number of jobs available to domestic workers would decline.
D) ​The volume of international trade has grown rapidly.