What was the most important of the reform movements? explain

What would be considered as the most important reform of the Progressive movement and why?

I have to choose from: 16th, 17th, 18th and 19th amendments and direct primaries, initiatives, referendums or recall.  

This is, of course, a matter of opinion.  My own view is that, of the reforms listed here, the 19th Amendment is the most important.  This is because it did the most to right a wrong and has arguably had the greatest impact on American society.

according to the quotation from booker t. washington's 1895 atlanta compromise speech.

in the great leap from slavery to freedom . . the masses of us are to live by the production of our hands . . we shall prosper . . as we learn to dignify and glorify common labor.

washington believed that  hard work had its own kind of dignity.

explanation:

mark brainliest and have a great day!