The one that will naturally lead to rationing is: C. Trade embargo
In trade embargo, a country will limit the amount of a certain product distribution to another country.
To combat this, it is very common to control the local distribution of that limited product until the conflict has been resolved.
The Old Immigration Wave was a group of people that were actually immigrants themselves whereas The New Immigration Wave can be people who weren't immigrants but there family members were or ancestors.
They had the option of priesthood
I’d say A. Long and Roosevelt did not like each other, and the SOWP was “a threat” to Roosevelt’s promises in the New Deal reforms.
Lexington is British
Concord is US
But the US won the whole battle
hope this helps