What monumental era caused imperialism to greatly increase? World War I, Industrial Revolution, Northwest Ordinance, or The Great Depression?

hey.

the answer is. b) to protect migrating native american tribes .

and, c) to protect migrating native american tribes .

hope this , if it does, consider marking me brainiest! uwu

it   would try making the   president who would the economy get out of depression picked

the answer is false.