People got mad, but happy at the same time
Responding to xenophobic concerns, Congress passed an emergency law restricting immigration in 1921. Among other provisions, the Act established a quota (a proportional share of a total) for nationalities on the basis of their numbers in the U.S. in 1910.
The missing detail is: a quota.
The answer is A, the French government along with the Belgian government occupied the industrial rhur valley to make up for unpaid reparations.
The Russian Empire was compromised of a vast amount of lands, so subsequently there are dozens of different ethnicity's across it including the Bashkirs, Yakuts, Nogais, and etc.
