Which statement best explains why the United States grew into a world economic power in the 20th century?
A. The United States stayed out of major world wars and instead
made economic investments.
B. The United States put effective trade barriers in place to limit trade
with other nations.
C. The United States benefited from investments in manufacturing
and technology
D. The United States prevented other countries from abandoning the
gold standard.

what are the choices? the multiple choices?

i will answer in the comments after the choices have been said.

the first two-party system consisted of the federalist party, who supported the ratification of the constitution, and the democratic-republican party or the anti-administration party (anti-federalists), who opposed the powerful central government, among others, that the constitution established when it took effect in

answer; night terrors;

answer; independent variable;