The correct answer is B. He is cruel. Grendel is introduced as a bloodthirsty, evil monster. He is a lonely creature who seeks an understanding of the seemingly meaningless world around him. He kills men consistently in the town's mead-hall, ripping them apart. Grendel is shown as evil because he kills passionately.
The Moon's Shadow is disappointed because the town has a rundown appearance and vomit smell.
Contrast is the right answer for the question
to get a message across to the audience and such things as certain themes they want to raw attention to.