Following the war of 1812, the us economy
a. suffered because of war debt.
b. grew quickly as cities grew rapidly.
c. was stable because the united state got loans from allies.
d. stagnated because there was no money for innovation.

b.grew quickly as cities grew rapidly.

Explanation:

The conflict lasted 32 months and Andrew Jackson, who would become founder of the Democratic Party and then president of the nation emerged as a military hero in his campaigns against indigenous allies with the British.

The War of 1812 put an end to the intentions of creating an Indigenous Confederation and an independent indigenous state sponsored by Great Britain.

Although there was invasion of Canadian and US territories by both parties, they were returned with the Treaty of Ghent, signed on December 24, 1814.

The conflict ended with the last colonial ties with Britain, demonstrating the military and economic capacity of the United States in the eyes of Europe.

The later stage was of economic prosperity for the US, and a boost to the westward expansion. The so-called "Era of good feelings" with a reaffirmation of national values.

answer; collective security;