AHHH hi I’m pretty sure it’s most likely the last option!
Answer: new immigrants had difficulty adjusting to life here. At the same time, the United States had difficulty absorbing the immigrants. Most of the immigrants chose to settle in American cities, where jobs were located. As a result, the cities became ever more crowded.
C. quickly looking over all of the words on a page because you are scanning the page like if you are asked to find a specific word on a page you wuickly read over it to find that word.
HOPE THIS HELPS!
I think its pronoun but I am not sure