At the onset of World War I, what was the United States official policy regarding involvement in the war? A)
The United States engaged in a policy of unrestricted submarine warfare
B)
The United States engaged in a policy of neutrality
The United States engaged in a policy of total war
D)
The United States engaged in a policy known as the Anaconda Plan

B. Neutrality

Explanation:

the navigation act prevented the colonies from exporting to countries other than britain and it prevented the importation of goods by other countries as well. so i believe the correct answer is d. other nations could not deliver goods to the colonies.

hope this .

food chain i would say only because there is competition on getting food and survival