A similarity between Ellis Island and Angel Island was that both immigration stations

served immigrants of mostly European descent

served immigrants of mostly Asian descent.

detained immigrants for weeks or months.

required immigrants to undergo questioning

A similarity between Ellis Island and Angel Island was that both immigration stations "required immigrants to undergo questioning."

Hence, in this case, the correct answer is option D "required immigrants to undergo questioning."

Learn more here: link

i just need the points

explanation:

the results of roman expansion produced social conflict and civil war. julius caesar gained power and became a dictator but was then assassinated. the reign of augustus began a long period of imperial rule and peace in the roman empire. rome faced the problems of how to maintain peace, law, and order.

hope this !

brainliest?