Where were most european immigrants processed or where did they have to go before they could enter the country?

Most imigrants from Europe arrived in new York City. They were processed at Ellis Island in New York Harbor before being allowed to enter ther United States.

ok sorry the answer is a. by their religion

well this is going to be a long answer lol ok so the visigoths were a branch of the goths who frequently raided rome, uh the hunas attacked the guptas a lot and weakened them, uuhm of course the romans used math and science in there every day lives i mean they had a whole empire to run, and rome was split into east and west by a general named diocletian. hope this you! : )