It was the "War Brides Act" that allowed foreign wives of servicemen to enter the U.S. outside of immigration quotas, since this was only seen as fair for those who were serving.
Economic push factors of immigration include poverty, overpopulation, and lack of jobs. These conditions were widespread in Europe during the 1800's.
They have a common because they all share a location which can be implemented on maps
Answer: your answer would be a
Explanation: