详解
Choice B is the best answer. In Passage 1, Beecher makes the point that even if women in her society are perceived as being inferior to men, they are still able to effect considerable influence on that society: "But while woman holds a subordinate relation in society to the other sex, it is not because it was designed that her duties or her influence should be any the less important, or all-pervading" (lines 6-10,"to... of").
Choice A is incorrect because Beecher describes the dynamic between men and women in terms of the way they can change society, not in terms of security and physical safety. Choice C is incorrect because even though Beecher implies that women have fewer rights in society than men do, she doesn't say that women have fewer responsibilities. Choice D is incorrect because Beecher does not assert that women are superior to men.