The right answer is C. W.E.B. Du Bois.
The Harlem Renaissance was an art movement in the 1920s that focused on African-American art. It was centered around the Harlem neighbourhood in NYC, hence the name.
Let's look at all the answers:
A. - F. Scott Fitzgerard was also active around that time, but he was part of another movement, the "Lost Generation" of people who came to age during World War I, and were traumatised by it.
B. H.L. Mencken was in fact a racist, so he could not form part of a movement centered around African-American art.
C. W.E.B. Du Bois was a civil rights activist, and in fact published and edited a lot of articles supporting and encouraring the Harlem Renaissance. This is the correct anwer.
D. Claude McKay creates a potential confusion here, as he also participated in the Harlem Renaissance, most notably with his book "Home to Harlem" in 1928. However, answer C is more fitting, as McKay mostly focused on literary work, and not an activist, as Du Bois was.
To be the main judges in any case. After passing all of the other courts and they not knowing what to do, the supreme court takes over and uses its judiciary powers to solve cases.
Politics was considered a mans job not a woman's
The American army suffered a signifigant defeat by UK forces and the White House was burned down.
A long-term effect is that the USA has not attemped to annex Canada since
The segment of american population drove the creation and success of the people's party in the early 1890's was farmers