Correct option is D
Among the highlighted words, “countless” and “sinuous” are incorrectly placed. The correct combination of words that should replace each other in order to make the sentence grammatically and contextually correct is B-C.
So, the correct sentence after rearrangement of words would be, “Because the
maze (A) was especially
sinuous (C) with
countless (B) twists and
turns (D), we were lost in it for hours.”