Answer:
C. not taking sides.
Step-by-step explanation:
George Washington wished that the US did not create permanent alliances, as there may be chances that the ally would turn against the US, and to only maintain a alliance in times of need. This led the US to follow the policy of isolationism as she continued her expansion.
Of course, the United States was not able to keep Washington's wish, and his policy was relinquished completely during World War II, as the US understood that, while they can pretend that they were not interested in world affairs, any foreign national affairs can have impacts against the US interests and security. As such, the promise to only use alliances fell apart, as allies soon played not only a militaristic role, but also economical and security roles.