Year Urban
(Percent of Total
Population)
Rural
(Percent of Total
Population)
1870
25.7
74.3
1880
28.2
71.8
1890
35.1
64.9
1900
39.6
60.4
1910
45.6
54.5
1920
51.2
48.8
Which factor most directly contributed to the population trend shown in the
graph?
A. The westward migration of homesteaders
B. The emancipation of African Americans
C. A growing wave of new immigrants
D. The relocation of American Indians