Blacks were the least group for aid.
The best statement to complete the diagram is that African Americans migrated to obtain jobs in northern factories.
<h3>Why were African Americans able to get jobs?</h3>
WWI had drained the nation of the manpower needed to sustain industrial production. This manpower however, had mostly been White people.
With them being in shortage on account of joining the army, African Americans were able to take their place and moved to the North to work in factories.
In conclusion, option B is correct.
Find out more on labor shortage in WWI at brainly.com/question/404503.
I think the form if government called democracy was formed there
First Barbary War is the andwer
<span>The first two political parties in the United States formed mainly in response to disagreements over slavery and/or power.</span>