Yes it is becase a Metaphor is The use of a word or phrase to refer to something that it is not, invoking a direct similarity between the word or phrase used and the thing described (but in the case of English without the words like or as, which would imply a simile); the word or phrase used in this way; an implied comparison.
Grendel
Grendel is a 1971 novel by American author John Gardner. It is a retelling of part of the Old English poem Beowulf from the perspective of the antagonist, Grendel.
Regarding the difference between fiction and nonfiction, the statement that is most accurate is that nonfiction writers are more often free to move about in time and space. The correct option among all the options that are given in the question is the third option or option "c". Fiction writers do not need to be realistic.
Don Quixote has been called "the first novel" by many literary scholars (or the first of the modern European novels).