Final answer:
The passage provides information about the inspection process at Ellis Island and Angel Island, supporting options A and B but not C and D.
Step-by-step explanation:
The passage provides information about Ellis Island and Angel Island, two major entry points for immigrants into the United States. The passage states that people at Ellis Island were often stuck waiting for days as they went through the inspection process, supporting option A. It also mentions that lengthy interrogations at Angel Island were designed to prevent immigrants from entering the country, supporting option B. However, the passage does not provide information to support options C and D.