Question ID:PT93 S2 Q3 Passage:Although there are immediate short-term gains in crop yield from a single application of certain hydrocarbon-based pesticides to fields on which they have not been previously used, studies have shown clearly that long-term use gradually depresses crop yield from this initially elevated level. We should conclude that use of these pesticides _______. Stem:Which one of the following would most logically complete the argument above? Correct Answer Choice:EChoice A:is uneconomic Choice B:damages the environment Choice C:will eventually make pest problems unmanageable Choice D:is probably not occurring in accordance with manufacturers' instructions Choice E:gives financial returns that diminish over time