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】
This is not the first time that the Greenville rangers decided to plant new varieties of flowers in public parks.
选项是否正确？