Which theme does this passage from grendel best illustrate? [beowulf] talked on. i found myself not listening, merely looking at his mouth, which moved—or so it seemed to me—independent of the words, as if the body of the stranger were a ruse, a disguise for something infinitely more terrible.  a. a monster lies within every person.  b. people often speak lies and half-truths.  c. grendel is fascinated by beowulf. d.   life is truly cold and meaningless.