Answer:
c.adults were poor back then,so they had to force their children to work
Michel Eyquem de Montaigne, Lord of Montaigne was one of the most significant philosophers of the French Renaissance, known for popularizing the essay as a literary genre. His work is noted for its merging of casual anecdotes and autobiography with intellectual insight.
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Michel de Montaigne - Wikipedia
C. figures aren't typically shown
It seems to be true from the other dudes answer