Question ID:PT93 S3 Q15 Passage:Ants sometimes live in hollow places in the roots of a certain orchid species.  Those orchids of that species that house ants are far healthier than those that do not.  Since the ants store organic matter in the orchids' roots, an explanation for the superior health of the orchids that house ants is that the organic matter stored by the ants provides those orchids with additional nutrients. Stem:Which one of the following, if true, is an alternative explanation for the better health of orchids that house the ants? Correct Answer Choice:CChoice A:Microscopic organisms that are present in the orchids' roots break down the organic matter stored there by the ants. Choice B:The nutrients present in the organic matter stored by the ants are the same as those present in the soil in which the orchids are found. Choice C:The ants that live in hollow places in the roots of orchids prey on an insect species whose members eat the orchids' roots. Choice D:The ants that live in hollow places in the roots of orchids do not play a role in pollinating the flowers of the plant. Choice E:Most plant species whose roots, stems, or leaves harbor insects are more prone to disease and rot than are other plants.