Which of the following statements best
describes the United States at the end of the
nineteenth century?
(A) The nation had shifted from an agrarian,
rural economy to an industrial, urban
one.
(B) The development of a vast transportation
system was a major factor in the
industrialization of the Midwest.
(C) The closing of the frontier marked the
end of the era of manifest destiny.
(D) Cities had undergone a vast change with
the growth of urban services and
infrastructures.
(E) Widespread use of the telegraph and
telephone had created a giant communications
network that linked the nation.