The correct option is D
The Niagara Movement was a civil rights organization for blacks founded in 1905 by a group led by W. E. B. Du Bois and William Monroe Trotter. It was named for the "powerful current" of change that the group wanted to carry out and for the Niagara Falls in Canada, where its first meeting took place in July 1905. This movement was a call for opposition to racial segregation and the deprivation of civil rights, they also opposed housing and conciliation policies promoted by African-American leaders such as Booker T. Washington.
There were several adverse effects that emerged from African Americans migrating North in search of jobs during World War I, but the most significant was over-crowed and sub-par living situations.
In the study of history<span> as an academic discipline, a </span>primary source<span> (also called </span>original source<span> or </span>evidence<span>) is an artifact, a document, diary, </span>manuscript<span>, autobiography, a recording, or other source of information that was created at the time under study. It serves as an original source of information about the topic. Similar definitions can be used in </span>library science<span>, and other areas of scholarship, although different fields have somewhat different definitions. In </span>journalism<span>, a primary source can be a person with direct knowledge of a situation, or a document written by such a person.</span>