Several Animal Species Have Gone Extinct on the Islands of Mauritius

Multiple Choice

Several animal species have gone extinct on the islands of Mauritius. These extinct animals, including the dodo bird and tortoises, once ate the fruit of many plant species. As a result of the extinction of these animals,
I. the flowers of the plants can no longer be pollinated.
II. the parental plants are strongly competing with their offspring.
III. many plants are growing together in tight groups instead of being spread over the island.

A) I only
B) II only
C) III only
D) I and III only
E) II and III only