B is a fact because it's just one point, whereas A, C & D are a point with an explanation- more likely a persons opinion.
Hope this helps!!
The answer that would best complete the given statement above would be the third option: EDUCATION. Based on the given statement above, the one that completes <span>Elinor's assessment in this quote is the word education. </span>“Lucy was naturally clever . . . and as a companion for half an hour Elinor frequently found her agreeable, but her powers had received no aid from EDUCATION."