Answer: I think the main idea is to show what struggles families faced during the Great Depression. Also, to especially show the struggled children had to face working for their families.
Explanation: Buddy Blankenship starts the paragraph by saying "I told my dad I wasn't going to school anymore". This shows that the author was a child when he started working in the mines with his father. He goes into detail on the struggle he faced, ie, "We got up at 5 in the mornin'" and "We'd work about six hours a day, seventeen hours". This kind of work is grueling and awful for a child.
Explanation:
Textbooks
Literature reviews and review articles (e.g., movie reviews, book reviews
Biographical works
Reference books, including dictionaries, encyclopedias, and atlases
History books and other popular or scholarly books
Commentaries and treatises
Beethoven was a musician, not a philosopher
Wordsworth was English, not French
Delacroix was an artist,not a philosopher
so the right answer is A. Jean-Jacques Rousseau