One renowned economist and social reformer has made a comparison of the labor movement and a flock of sheep as negotiating with a wolf, asking the wolf to scale back its demands for prey; the wolf may compromise, but the sheep will always suffer badly in the end.
(A) made a comparison of the labor movement and a flock of sheep as negotiating with a wolf, asking
“compared” is preferred. “as negotiating” is unidiomatic. “made a comparion” implies that he contrasted while we need to say that he found them similar, not different.
(B) made a comparison between the labor movement and a flock of sheep negotiating with a wolf, asking
“compared” is preferred. “made a comparion” implies that he contrasted while we need to say that he found them similar, not different.
(C) compared the labor movement with a flock of sheep as negotiating with a wolf and which asked
“as negotiating” is unidiomatic. “which asked” is not parallel to anything.
(D) compared the labor movement to a flock of sheep negotiating with a wolf, asking
Correct: “asking” correctly modifies the preceding action.
(E) compared the labor movement with a flock of sheep that negotiates with a wolf and it asks
“ans it asks” introduces two unrelated actions. actually “asking” is the part of “negotiating”.
Hence D