C.
<span>Oral history
</span>was used before the development of writing
A: So listeners can stay awake and alert.
According to the song, the Navajo culture probably thinks the nature that surrounds them as they walk is beautiful. For example, the narrator mentions the seasons, birds, trails, grasshoppers and the dew. Actually, he suggests that not only nature but life, old age and death possess beauty too.
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