a. they were influential african american leaders in the 1920s
b. they migrated to the south to improve the lives of african americans there
c. they were white musicians and composers who were heavily influenced by jazz
d. they worked together to invent jazz
CSource(s): I was raised in a musical family – you get to know these things.
CSource(s): Memory is the source of my answer. Education is the source of my memory.