Choice D is the best answer. Woolf writes that the men who conduct the affairs of the nation (lines 15-17: "ascending those pulpits, preaching, teaching, administering justice, practising medicine, transacting business, making money") are the same men who go to and from work in a "procession" (line 10,"procession... educated"). Woolf notes that women are joining this procession, an act that suggests the workforce has become less exclusionary: "For there, trapesing along at the tail end of the procession, we go ourselves" (lines 23-24,"appreciation... ourselves").
Choice A is incorrect because the procession is described as "a solemn sight always" (lines 17-18, "transacting......caravanserai"), which indicates that it has always been influential. Choice B is incorrect because the passage does not indicate that this procession has become a celebrated feature of English life. Choice C is incorrect because the passage states only that the procession is made up of "the sons of educated men" (lines 10-11, "procession...men").