How is grendel developed as a character in Grendel?

Read this sentence from "the wife's lament

Which of the following is not a fire safety precaution a; start fires with kindling or other fire starters b: check local regulations and conditions before starting a fire c: clear flammable debris away from fire area d: extinguish all burning embers before leaving

Select the sentence with the dangling modifier. which highlighted ones is it? it can only be one.