Which detail best supports the idea that Harlem was a center of growth for jazz music in America?

Responses

Harlem had nightclubs where musicians played jazz.
Harlem had nightclubs where musicians played jazz.

Jazz musicians in Harlem were known for improvising.
Jazz musicians in Harlem were known for improvising.

Famous jazz musicians pursued their careers in Harlem.
Famous jazz musicians pursued their careers in Harlem.

Jazz helped musicians in Harlem express themselves.
Jazz helped musicians in Harlem express themselves.

Famous jazz musicians pursued their careers in Harlem.