Which of the Following in Not True About Net Exports

Multiple Choice

Which of the following in not true about Net exports (NX) :

A) Net exports is exports minus imports.
B) Net exports have been negative for the last 3 decades.
C) Because of net exports, the flow of dollars out of the United States to purchase foreign goods and services is less than the flow of dollars coming in.
D) Net exports is a measure of goods and services exported and imported by the United States.