The town of Greenville witnessed a decline in butterfly population after rangers planted a new varieties of flowers in its public parks. Bee and songbird populations also experienced a drop. The town parks manager, however, maintains that the decline in wildlife has nothing to do with the new flower varieties.
Which of the following, if true, most strongly supports the parks manager’s position?
【选项】
Rangers only plant new varieties of flowers in order to attract migrating species of butterflies and songbirds.
选项是否正确？