The correct options are:
William Lloyd Garrison: Abolition.
Garrison (1805 – 1879) was a well known American abolitionist, editor of the abolitionist newspaper The Liberator, and one of the founders of the American Anti-Slavery Society.
Horace Mann: Education.
Mann (1796—1859) was the first prominent American advocate of public education. He believed in free, universal, nonsectarian, and democratic education.
Dorothea Dix: Treatment to the mentally ill.
Dix was a reformer and one of the first in the movement to treat the insane as mentally ill.
Frederick Douglass: Woman's rights.
Douglass actively advocated women's suffrage. He believed in the equality of all peoples, including black, female, Native American and recent immigrants.