When world war i began, the official united states policy was (points : 1)
to enter on the side of the allied powers
to enter on the side of the central powers
to remain militarily and politically neutral
to support the central powers by providing war materials

In general the USA took the side of: remain militarily and politically neutral.

However, there were some companies in the United States that were able to somehow supply the Allies. Then there were some others who supported the Central powers by doing business with those countries.

Hopefully this helps.

can you post options?