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These words are part of Montesquieu's treatise The Spirit of the Laws. More specifically, they belong to the Chapter 6 ("Of the Constitution of Engand") of this treatise.
In this text, Montesquieu defends political liberty. Moreover, he argues that the best way of achieving it is by establishing the separation of the powers. In that way, Montesquieu believes that the different functions of government, that is to say the executive, legislative, and judicial functions, should be assigned to different bodies. Furthermore, he argues that liberty cannot be established in a nation where there is no separation of powers.
I think a but its your choice
The main objective of the National Origins Act of 1924 was to favor the immigration from Northern and Western Europe. The government did this to tighten the 1921 quota formula for immigration.
B. Because even with many issues that plagued the Roman Empire economically and politically, By the later years of the empire the Roman military was mainly comprised of trained Barbarian soliders who were inferior to earlier Roman soliders causing a significant decrease in the Roman Empires's Military capablities so many barbarian tribes that began to grow such as the Huns, Vandals, Goth etc. Put immense pressure on the Empire, driving them into the ground economically and causing many issues within the government and eventually being sacked, thus marking the end of the Roman Empire. Sorry for the wall of text but hope this helped :)