Ida B. Wells was mainly concerned about the education of

African Americans.

Explanation:

Ida Wells was an American civil rights activist who campaigned primarily to make lynchings of blacks a thing of the past, particularly in the southern United States.

In 1884, she refused to leave a segregated train compartment in Memphis. After the train company had her forcibly removed from the compartment, she sued the company. She won, but in 1887 the Tennessee Supreme Court overturned the verdict.

From 1889 she was an editor of an anti-segregation magazine in Memphis. Her book on lynching, A Red Record, was published in 1895. In 1909, Wells was present when the National Association for the Advancement of Colored People was formed in New York. She was one of the first black women to run for the Illinois legislature in 1930.

c. the dred scott v. sandford case,

a, both were musicians during the jazz age