Help wit this Economics question please!!! thank you

In 2008, the United States exported goods and services worth 1.84 trillion and imported goods and services worth 2.52 trillion. That resulted in a trade decit of $0.68 trillion. In the same year, U.S. Gross Domestic Product equaled $14.61 trillion. The index of openness for the United States in 2008 is . This indicates that the U.S. is relatively ________ to trade. 7:7 12.59 ; open 7?. 17.24 ; open None of these are correct. 7:? 12.59 ; closed 7?. 17.24 ; closed