Final answer:
The element common in both stories about the naming of Moloka'i's western points is a hau bush named Nani. correct option is A
Step-by-step explanation:
The element that the two mo'olelo (stories) about the naming of the two western points of Moloka'i have in common is a) A hau bush named Nani. Both stories incorporate this botanical component, Nani, as a significant feature in the tales associated with the geographic naming.