I would say A.. ending child labor.
Lewis Hine was an activist for the National Child Labor Committee. Mother Jones was a school teacher as well as a female activist. Even though she was most famous for being the founder of the Industrial Workers of the World, I think she would be united with Lewis Hine with ending child labor.
The answer to your question is A.
The worst provision of the Navigation acts is legislation, trade, with the colonies was to be managed only in English or colonial ships. Itemize products such as sugar, tobacco, and indigo were to be shipped only within the empire. Trade destined for nations outside the empire had to go first to England. The worst result of Navigation acts was the stifling of colonial manufacturing and increased resentment against the mother country.
National parks were invented to preserve natural land, wildlife, and historic treasures.
