Suppose the United States Experiences an Increase in Its Trade

Suppose the United States experiences an increase in its trade deficit.Which of the following is a possible explanation for this growing trade deficit? There has been:

A) a decrease in U.S.interest rates.
B) an increase in the U.S.savings rate.
C) an economic expansion in the United States.
D) a decrease in the U.S.budget deficit.
E) an increase in foreign interest rates.