Respuesta :
All alternatives are true.
Accelerated global economic growth: this was observed particularly in the USA, which lived its golden age in the 1920s.
Changed trade policies: this is common. Governments have greatly altered their economic policy over time. Some governments have become more liberal, others have closed their economies.
Economic depression: the Great Depression of 1930 occurred after the Crash of the New York Stock Exchange. This depression came from overproduction and deliberate credit. It hit the whole world, but it started in the USA.
Rapid industrialization: Yes, industrialization happened quickly in developed countries, but it was muddled in Europe by the two wars that destroyed the continent.