Read the following sentence from the passage above.

"You know, everything had to begin, and this is how it was: the Kiowas came one by one into the world through a hollow log."

What question does this sentence help answer?

A. Why does the woman get stuck in the hollow log?
B. Why does everything have a beginning and an ending?
C. Why do the Kiowas tell stories about their history?
D. Why do the Kiowas call themselves Kwuda, "coming out"?