The answer is: United States would have a deficit of $11 billion in the given year.
A trade surplus occurs when a country exports more than it imports. On the other hand, a deficit is when a country imports more products than it exports.
In the above example, the United States is exporting only $5 billion of goods but importing $16 billion of products. This means that the total trade deficit in the example is 16-5 = $11 billion.
This actually represents the current situation of the United States where it has a significant trade deficit with many major economies in the world, most noticeably with China.