Question ID:PT43 S2 Q7 Passage:Failure to rotate crops depletes the soil's nutrients gradually unless other preventive measures are taken.  If the soil's nutrients are completely depleted, additional crops cannot be grown unless fertilizer is applied to the soil.  All other things being equal, if vegetables are grown in soil that has had fertilizer applied rather than being grown in non-fertilized soil, they are more vulnerable to pests and, as a consequence, must be treated with larger amounts of pesticides.  The more pesticides used on vegetables, the greater the health risks to humans from eating those vegetables. Stem:Suppose there were some vegetables that were grown in soil to which fertilizer had never been applied.  On the basis of the passage, which one of the following would have to be true regarding those vegetables? Correct Answer Choice:CChoice A:The soil in which the vegetables were grown may have been completely depleted of nutrients because of an earlier failure to rotate crops. Choice B:It is not possible that the vegetables were grown in soil in which crops had been rotated. Choice C:The vegetables were grown in soil that had not been completely depleted of nutrients but not necessarily soil in which crops had been rotated. Choice D:Whatever the health risks to humans from eating the vegetables, these risks would not be attributable to the use of pesticides on them. Choice E:The health risks to humans from eating the vegetables were no less than the health risks to humans from eating the same kinds of vegetables treated with pesticides.