Answer:
The number of underage children working at factories.
Explanation:
Florence Kelly in her speech mentions that about 2 million of children under the age of sixteen works to earn their bread in America. She presents this factual information to highlight the high number of innocent children who are forced to work at factories and other profit making set-ups.
Through this data, she helps the listeners to understand the grim reality of America that most people are unaware of. She then places herself as one of the many Americans who are neglecting the issue of child labour. She connects the audience with first person point of view by referring "we" and uses emotional phrases such as 'little girls working till eleven at night while we sleep comfortably at home' and 'little beasts of burden'.
The best answer, and most likely answer would be D. I hope this helps! :)
