Why was the Harlem Renaissance a crucial event for African
Americans in the 1920s?

The Harlem Renaissance was the development of the Harlem neighborhood in New York City as a black cultural mecca in the early 20th Century and the subsequent social and artistic explosion that resulted. Lasting roughly from the 1910s through the mid-1930s, the period is considered a golden age in African American culture, manifesting in literature, music, stage performance and art.

Explanation:

the answer for 3 is b and the answer for 4 is d