When analyzing non-fictional media you should pay attention to
a. plot
c. dialogue
b. setting
d. none of these?

what is the question.. you are more likely giving us something to read with no question

type of error:

the error in the sentence is a "dangling modifier". a dangling modifier is a phrase, word or clause that "dangles" because there is not target to modify. in this case, "after mopping the floor" is the dangling modifier since it has no word to modify. the noun "house" cannot mop the floor; therefore there is a mistake in the writing of the sentence.