Whoever answers this correctly gets brainliest

About how many european immigrants were processed at the facilities on ellis island

Select the correct answer from each drop-down menu. different sources are aimed at different audiences. sometimes a source can be directed at more than a single group of usually aimed at the general population across the globe. some sources may have a very specific audience. be specifically aimed at students or scholars with a background in literature.

Based on this passage, which issue facing laborers did samuel gompers want to focus on first?