Question

angel island was infamous for discriminating primarily against what group of immigrants? australians irish catholics chinese

Explanation:

Angel Island immigration station in the US was known for harshly screening and discriminating against Chinese immigrants, especially during the Chinese Exclusion Act era and related anti - Chinese sentiment. Australians and Irish Catholics were not the primary group targeted at Angel Island.

Answer:

Chinese (the option with "Chinese" as the text, corresponding to the third option in the list)