Which of the Following Is an Example of How the United

Which of the following is an example of how the United States helped the Allied powers prior to joining the war?

A) American spies frequently provided the Allies with intelligence about enemy operations, becoming the first to know of the declaration of war.
B) Congress loosened immigration laws to allow a massive number of war refugees into the country who were crucial for the domestic war effort.
C) American ships provided naval escorts for British merchant vessels, as Britain and most other participating powers did not yet have their own official navies.
D) American banks and businesses refused to do business with the Central Powers, as Wilson was adamant about declining to pursue economic benefits from the war.
E) American banks and the U.S. government offered loans and credits to the Allies that allowed the Allies to pay for purchases later but made it harder for Americans to remain neutral.