Suppose a Population of a New Plant Is Found on an Island

Multiple Choice

Suppose a population of a new plant is found on an island. DNA sequencing determines that this plant shares a limited number of genes with plants on the mainland. Within the species, there is a huge genetic variability. This would suggest that:

A) this new species is more closely related to animals.
B) this plant species has been isolated on the island for a long period of time.
C) DNA sequencing is unreliable for determining genetic linkages.
D) this plant species is very closely related to plants on the mainland.