Which of the Following Statements Is True About Foreign Demand

Which of the following statements is true about foreign demand for U.S.exports?

A) Lower costs of production in developing countries have led to falling demand for U.S.exports.
B) Although foreign demand for U.S.exports has generally been falling, it has grown in one area, namely, technology intensive products.
C) The demand for U.S.exports is almost as large as investment and government purchases component of aggregate demand.
D) Rising prices in the U.S.relative to prices in foreign countries have led to falling demand for U.S.exports.