A plant species is found on the mainland of Africa and a migratory bird species feeds on its seeds.These birds arrive on an island,defecate,and leave the seeds on this island.Let us assume the seeds will germinate.Over evolutionary time,what may become of these plants on the island?

A) Nothing, because they are sterile
B) They may evolve into endemic species since they are isolated from individuals of the original species on the mainland
C) They will experience sympatric evolution with the original plants on the island
D) Nothing, because they will never be able to exchange genetic material with the mainland population