I believe the answer is D) both explain something about the natural world.
Fables- are stories that are passed down, with a good lesson to be learned, and are about animals, plants, or forces of nature that are humanlike.
Folktales are stories in the oral tradition, or tales that people tell each other out loud, rather than stories in written form. They're closely related to many storytelling traditions, including fables, myths, and fairy tales.
Happy Early Christmas!✨❤️