Answer:
B - The harsh treatment immigrants received on Angel Island
Explanation:
This is the most likely option, mostly because of process of elimination
A - While we do understand that Kai is excited, the mood quickly shifts when it states that he knows that he hasn't quite made it yet, and there's still one more hurdle to cross.
C - it describes inexperience, yes, but it mostly describes why a lack of experience can make this process difficult (Immigrant officer treatment)
D - I mean, come on now. This is an analyses (this seems the least likely option)
therefore, B
