Answer:
The correct answer is letter "B": Imports have grown faster than exports, and the United States has become a net importer.
Explanation:
International trade is not just a major engine of the U.S. economy, but for the global economy. The total trade share in terms of the global Gross Domestic Product was 25% in 1960 and it has raised to 56% in 2017. Though, imports have surpassed the level of exports, making America be a net importer. Main imports are in the form of raw materials for the production of different goods mainly vehicles, and clothing.