Regarded by opponents as ineffective and meddlesome and by supporters as a conserver of life and energy, the fight over the speed limit continues in our legislatures and on our freeways.
A. Regarded by opponents as ineffective and meddlesome and by supporters as a conserver of life and energy, the fight over the speed limit continues in our legislatures and on our freeways. - Wrong modifier, "Regarded by ..." should modify speed limit not the fight
B. Regarded by opponents as ineffective and meddlesome and by supporters as a conserver of life and energy, the speed limit continues to be fought over in our legislatures and on our freeways. - Wrong, passive wise statement
C. Regarded by opponents as ineffective meddling and by supporters as the conservation of life and energy, the speed limit continues to be fought over in our legislatures and on our freeways. - Wrong, passive wise statement
D. The fight over the speed limit, regarded by opponents as ineffective and meddlesome and by supporters as a conserver of life and energy, continues in our legislatures and on our freeways. -grammatically correct but modifier generates ambiguity for noun
E. The fight over the speed limit, a measure regarded by opponents as ineffective and meddlesome and by supporters as a conserver of life and energy, continues in our legislatures and on our freeways. - Correct answer, modifier ambiguity is clearly removed by using appositive "a measure"(fight can't be a measure). Most of the sentence with appositive are always correct.