Answer:
The right answer here is a.
a. of pressure put on them by the westward migration of the Huns.
Explanation:
The Germanic tribes had a long, several-century history of conflict and interaction with the Romans. In the 4th century CE, hosts of a ferocious Asian nomad people, the Huns, were on the move from the east. They crossed the Volga river, attacked and vanquished the Ostrogoths in Eastern Europe. The Visigoths implored the Romans for sanctuary within the limits of the empire.
Prohibition was hard to enforce because citizens always found a way around prohibitions rules, such as bootlegging and smuggling alcohol from canada
They wanted more power for state governments.
An Act to limit the immigration of aliens into the United States. The Emergency Quota Act, also known as the Emergency Immigration Act of 1921, the Immigration Restriction Act of 1921, the Per Centum Law, and the Johnson Quota Act (ch. 8, 42 Stat. 5 of May 19, 1921) restricted immigration into the United States.