Which summary of the 19th century most clearly emphasizes the theme of
social change?
A. A powerful southern economy was devastated by a war that left it
in tatters for decades.
B. The economy transformed from a rural, agricultural one to an
urban one that embraced industrial production.
C. Deception and violence slowly destroyed the last American Indian
resistance.
D. A nation initially controlled by white, landowning males slowly
expanded the definition of citizenship.