What’s the answer to this question? (apex english 2)

Which historical detail can best clarify a reader’s understanding of the information in the excerpt? immigrant factory workers who spoke the same language were separated from each other at work. immigrant factory workers who spoke the same language were known to talk too much at work. immigrant factory workers had to pay rent for their chairs and the supplies they needed at work. immigrant factory workers were crowded into unsafe buildings with locked doors and fire escapes.

How does the author's purpose affect his or her text structure

In descriptive writing, the conclusion should introduce a new idea return the discussion to the general level use a quotation explain why the essay was effective