The correct answer is option A) abolitionists.
Grimke sisters were known in the 19th century as the first American advocates of women rights and anti-slave movements.
Angelina and Sarah Grimke were born in a Southern family that owned slaves but then moved to the North and became part of the Quaker community.
They they for the abolitionist movement and for the rights of women and they wrote abouts these topics which were later published.