The most accurate response regarding the impact of the Great Depression on the African American community in Harlem is:
Unemployment increased by about 25 percent.
During the Great Depression, African American communities, including those in Harlem, faced severe economic hardships, with unemployment rates soaring. Many African Americans were disproportionately affected by job loss and economic instability compared to their white counterparts, exacerbating existing inequalities and increasing poverty in the community.