Jane Austen uses Omniscient Narration to highlight her characters' traits in Pride and Prejudice. The book is generally narrated by the third person or as Elizabeth. But it allows the reader to study the characters by what they do, what others say about their endeavors and how they act in the presence of the other characters.
I believe it would be B, vanquish. For one to use such a fancy and strong word, would sound as if one were boasting. Example: "The young man brazenly claimed that he had vanquished the massive bear."
Suffix (able)
Meaning; suitable for or worth quoting.