DMe encantaría ayudarte, pero solo sé español
The correct option is the number 3
From the beginning of the war, and despite the policy of isolationism, the USA helped England with armaments, food and financial assistance. When the country entered the war all its industry changed as well as its society and lifestyle. Young men went to war and women took their places in working life. The industry transformed completely and went from producing consumer goods to producing armaments and military supplies to face the great war.
I suppose the Indians helped the French because the British took their land to make colonies. To get revenge, they helped the French for the British to lose the land.
Hope this helps!