The passage lists a few things which would lend towards the idea of him being a monster. First, it says "god's anger bare he." referring, presumably, to the abrahamic god famous for his wrath, showing that Grendel was exhibiting intense rage. Second, it uses the sentence "The monster intended some one of earthmen in the hall-building grand to entrap and make way with" which, while a written a little backwards by today's grammar rules, says that he is planning to take hold of and kidnap some of the men in the hall, something only a monster could do.<span />
Well everyone has different point of veiws.so you might find it meaningless while she thinks not of it.for example the women rights movement,men or other women saw it pointless that women should vote or get any of the privileges that men have or get. so lets say you thought that it was cool that the women stood up and fought like that but your friend didn't find it interesting that is different perspectives. correct me if i am wrong.
I would guess B, but i'm not 100% sure