Question

Natalie Curtis made a number of observations about the Navajo and their songs. According to these observations, songs like “Twelfth Song of Thunder” were

passed on to the Navajo by the Apache people.
never written down by the Navajo ancestors.
constantly changing pieces of literature.
given to the Navajo people by the gods.

Answer 1

given to the Navajo people by the gods.

Curtis described such songs as sacred, revealed chants handed down intact from the Holy People (not as casually changing or recent compositions).