Answer:
b. Legends.
Step-by-step explanation:
A legend is a genre or form of a narrative where the story revolves around a mortal and gives a good moral. These stories are from the ancient past and are passed from one generation to the next, most foremost through oral traditions. These stories are then eventually written down, giving proper proof of their existence. And such stories are based on some good and heroic characters who convey good morals and lessons to the listeners. Examples of such legends are the Arthurian legends, Odysseus and Big Foot, Noah's Ark, etc.
Thus, the correct answer is option b.