Answer: D. They evolved from the same ancestor.
Step-by-step explanation:
In the event that at least two species share a one of a kind physical characteristic they may all have acquired this quality from a typical predecessor.
Attributes that are shared because of basic family are homologous structures. For instance, the forelimbs of whales, people, and birds appear to be unique outwardly on the grounds that they're adjusted to work in various conditions.
Nonetheless, on the off chance that you take a gander at the bone structure of the forelimbs, the association of the bones is comparative crosswise over species.