Answer: exported more services abroad than it has imported.
Step-by-step explanation:
The U.S. might not have a positive balance of trade when it comes to net exports entirely but when it comes to services, the U.S. is experiencing a surplus.
This is because the U.S. is exporting more services than it is importing. This means that U.S. professionals are doing more for outside countries than other countries are doing for the U.S. Another big contributor is the social export of the U.S. including music, movies and other multimedia.