What did the Factories Act of 1847 introduce?

問題： What did the Factories Act of 1847 introduce?

選擇：It limited the number of hours that everybody could work to 10 hours per day.
It increased the number of hours that women and children could work to 12 hours per day.
It increased the number of hours that men could work to 12 hours per day.
It limited the number of hours that women and children could work to 10 hours per day.

正確答案：
4

解釋:

The Factories Act of 1847 limited the number of hours that women and children could work to 10 hours per day.