The answer is going to be c
The correct answer is B: Rich Londoners are quick to bet huge sums of money to settle trivial arguments. This is because they were betting whether or not he would starve in a month. This is of course, not an actual concern and just an exaggeration, since rich people don't starve.
The novel uses first-person narration to show Grendel’s perspective.
The question lacks some context but I would say B) might be the right answer. Hope this helps!