Since there are no choices given, allow me to give the factors that caused the Fall of the Aztec Empire. These are:
*the sacrifices (ritual Aztec sacrifices);
*religion;
*diseases; and
*tactics.
To further learn about this topic, see attached file.
Not so much during, but a bit more after WW II there was more movement. This is what my great grandfather told me.
The effect of US government policies during the 1920s is that US national debt declined.