详解
In the first paragraph, the narrator describes Silas as having been so obsessed as to have felt required to worship the gold "in close-locked solitude," with "his thoughts in an ever-repeated circle" centered on his hoard. Moreover, this obsession compelled him to "sit weaving longer and longer, deafened and blinded more and more to all things except the monotony of his loom and the repetition of his web." These lines convey the extent to which Silas's behaviors were determined by his obsession.
Choice B is incorrect because the narrator does not make it seem as if Silas's gold could reproduce on its own, with the first paragraph suggesting that his hoard was a consequence of hard work, his being "deafened and blinded more and more to all things except the monotony of his loom and the repetition of his web." Choice C is incorrect because even if the first paragraph mentions that, after Eppie's arrival, Silas thinks about "the ties and charities that bound together the families of his neighbors," the passage never addresses how Silas interacted with those neighbors previously. Choice D is incorrect because the third paragraph makes clear that Silas is not only able to recall life before Eppie, but that with her in his life, "his mind was growing into memory."