What was a common role of working children in urban centers during the period of industrialization?
O A. They would help their parents operate small businesses and learn the family trade.
O
B. They would go into small spaces of the machines in factories that adults could not reach.
O C. They were used to translate messages from their parents' managers into English.
O
D. They would participate in a work-study program where they went to school and did paid labor.