Horace Mann was an educational reformer who lived in the US in the 19th century. He was a first to advocate a system of a public schools and public education as he believed that everyone had a right to education and that it should be free, democratic and have a professionally trained educators who would provide a quality education.
Well from what iu know about him, he was most famous for painting things about the leaders of the american revolution. and from these choices, the only one that seems to work is C. hope my answer has helped you
To maintain separation of powers, and to maintain the popular vote are both correct!
<span>by promoting: openness, encouraging independence, and supporting freedom!
Hope This Helps!</span>