Based on the options provided, the statement that best describes the economic impact of a trade agreement would typically be:
C. The agreement led to exports to the US to increase but led to a decrease in imports.
This option suggests a change in trade dynamics, which is a common result of trade agreements. However, the exact impact can vary depending on the specific details of the agreement and the countries involved. If you have more context regarding the specific trade agreement in question, I could provide a more tailored analysis.