The option that best describes how the personal narrative enhances a
reader's understanding of the mythical description is: " It confirms the idea that the bison was a highly valued resource to this cultural group." (Option C)
A personal narrative can be defined as a narrative by a narrator describing an event that took place in their life.
Because the narrator is giving the first account, it, therefore, sheds more light on their perspective and how the passage should be understood.
Hence, from the full question (which is attached) and the text therein, the option that best describes how the personal narrative enhances a reader's understanding of the mythical description is:
"It confirms the idea that the bison was a highly valued resource to this cultural group." (Option C)
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