World War I and its impact in the U.S. was a major influence on the Great Migration - World War I helped boost industry in the northern cities (both world wars impacted industry positively in the U.S.), and this accelerated the pace of the migration of African Americans from the South.
The Harlem Renaissance is seen as a result of the Great Migration - During the Great Migration, many African Americans emigrated to Harlem. A majority of them had benefited from the end of slavery, for example, they had become literate, and this higher rate of literacy helped the cultural movement.
Manufacturing and industrial jobs were a major draw for people in the Great Migration - it was probably the main draw. The South war rural, poorer, and African Americans were treated poorly there despite not being slaves anymore. The North and Midwest, on the other hand, were industrial, booming, and wealthier, and African Americans went there looking for jobs and a better life.
"A victory over the U.S." and "access to lots of oil" are the two reasons what the <span>Soviet Union stood to gain if it controlled Afghanistan. The correct options among all the options that are given in the question are the third and the fourth options. I hope that this is the answer that has actually come to your help.</span>