Which of the following describes the extent of international trade in the U.S. economy? O A. About 66 percent of U.S. manufacturing industries depend on exports for at least 10 percent of jobs. O B. Each year, the U.S. exports less than 10 percent of many agricultural crops such as corn. O C. Since 1970, U.S. exports have decreased from about 11 percent of GDP to about 4 percent in 2018 O D. Since 1970, U.S. imports have increased from less than 5 percent of GDP to about 30 percent in 2018 O E. Since 1970, U.S. exports have decreased and U.S. imports have increased