The first half of the 20th century in the US is famous for jazz, introduced by ____in the south.
A. Black Death
B. the South Island
C. African Americans
D. the Muckrakers
E. Electoral College
F. multiculturalism
G. service
H. the Higher Education Authority
I. film
J. The Crying Game
K. the North Island
L. Domesday Book
【正确答案】：C