By the next moon, what decision must Hermia make? A. to die or to marry Lysander
B. to go to a nunnery or to die
C. to marry Demetrius or to go to a nunnery
D. to marry Demetrius, to join a nunnery, or to die E, to marry Lysander or to join a nunnery

the next moon hermia take decision to die

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.

did you ever get an answer? i'm on the same question : (