Respuesta :
The correct option is:
a. Horace Mann: Education Reform
Horace Mann (1796 – 1859) was an American educational reformer influenced by the work of the Whig. He was known for his dedication to promoting public education. For that, Mann is usually referred to as the "Father of the Common School Movement".
Lucretia Mott was part of the Women's suffrage movement. William Lloyd Garrison was a notable Abolitionist. Dorothea Dix worked on improving conditions for the mentally ill.