SAT Inferences Question

The hwamei and other fruit-eating bird species introduced to the Hawaiian island of Oahu in the last 150 years have recently been found to spread seeds from the fruits of forest plants native to Oahu that are at risk of extinction,such as the kolea lau nui tree. Many of these vulnerable plant species rely on the activity of fruit-eating birds to help spread the plants'seeds in the wild.All fruit-eating bird species native to Oahu have gone extinct,suggesting that Which choice most logically completes the text?