Choice B is the best answer. In Passage 1, Beecher asserts that men and women naturally have different positions in society: "Heaven has appointed to one sex the superior, and to the other the subordinate station" (lines 1-2,"Heaven...this"). She goes on to argue that a woman should act within her subordinate role to influence men but should not "exert coercive influences" that would put her "out of her appropriate sphere" (lines 44-46,"conflict...are"). In Passage 2, Grimké takes issue with the idea that men and women have different rights and roles. She asserts that as moral beings all people have the same inherent rights and states that "the mere circumstance of sex does not give to man higher rights and responsibilities, than to woman" (lines 66-68,"founded ...To").
Choice A is incorrect because Passage 2 does not discuss the practical difficulties of something that is proposed in Passage 1 but rather argues against the main point of Passage 1. Choice C is incorrect because Passage 2 does not provide historical context for the view expressed in Passage 1; the passages were published at around the same time and both discuss contemporary society. Choice D is incorrect because Passage 2 does not elaborate on implications found in Passage 1 as much as it disputes the ideas explicitly expressed in Passage 1.