The correct answer is "A".
The "Great Migration" was the massive relocation of African Americans to territories up North, Midwest, and West which occurred from 1916 to 1970. During this period, African Americans who relocated into urban areas in the north were subject to constant violent acts from the White community, as there was still an inherent sentiment of segregation among the citizens of the country. This prompted African Americans to establish in suburbs in the outskirts of the urban areas during the 1950s.
One of the main reasons why a historian would use a primary source when studying a historical event is because "<span>C. Primary sources are created by people who actually experienced the event", and they can also be things that happened to be "around" at a certain time. </span>
Yes it is actually because they both do the same stuff
<span>He established a small court in which he brought sailors, mapmakers, astronomers, and others who were interested in navigation. From this court, he sent expeditions west to islands in the Atlantic and south to explore the western coast of Africa.</span>