How Did the United States' Understanding of Itself Change After

Multiple Choice

How did the United States' understanding of itself change after the Civil War?

A) Its sense of national identity, and the strength of the national government, grew stronger.
B) Its sense of national identity grew weaker, since serious unresolved regional differences continued to exist.
C) Its identity as a major agricultural exporter grew to be equal to that of Germany or of Great Britain.
D) Its identity as a multiethnic state grew stronger.