How did Ellis Island differ from Angel Island?

AChinese and Asian immigrants were often processed on Ellis Island.
BImmigrants left Ellis island within hours, and stayed on Angel island for weeks.
CAngel island was welcoming to some, but Ellis Island was seemingly designed to filter out Chinese immigrants.
DChinese travelers were never turned down at Angel Island.

Verified Answer :

Immigrants left Ellis island within hours, and stayed on Angel island for weeks this is how  Ellis Island differ from Angel Island