In the Late Nineteenth Century,what Significantly Increased Freedoms and Rights

In the late nineteenth century,what significantly increased freedoms and rights for Americans?

A) Judith Sergeant Murray wrote about women's intellect being equal.
B) Ex-slaves were given the right to vote in southern states.
C) Children were given the same rights as adults.
D) Indentured servitude had declined.
E) Indians were granted the right to vote in the Northwest territory.