Read the legend titled "Origin of Light." In the earliest beginning, the darkness was thick and deep. There was no light. The animals ran here and there, always bumping into each other. The birds flew here and there but continually knocked against each other.

Hawk and Coyote thought a long time about the darkness. Then Coyote felt his way into a swamp and found a large number of dry tule reeds. He made a ball of them. He gave the ball to Hawk, with some flints, and Hawk flew up into the sky, where he touched off the tule reeds and sent the bundle whirling around the world. But still the nights were dark, so Coyote made another bundle of tule reeds, and Hawk flew into the air with them and touched them off with the flints. But these reeds were damp and did not burn so well. That is why the moon does not give so much light as the sun.

What is the best summary of the story?

Coyote and Hawk made the sun and the moon, because they did not want to bump into each other anymore.
There used to be no light. This was a problem Coyote and Hawk wanted to solve. Clever Coyote made balls of reed, and Hard-working Hawk took them up to the sky. One reed ball burned brightly during the day, and one burned dimly at night.
Before there was light, the animals had trouble seeing each other. Coyote and Hawk solved the problem by creating the sun and moon out of two burning balls of reeds. Because the moon was made from damp reeds, it does not burn as brightly as the sun.
In the earliest beginning, the darkness was thick and deep. There was no light. Hawk and Coyote thought a long time about the darkness. Coyote bundled up some tule reeds. Hawk flew up into the sky, where he touched off the reeds and sent the bundles whirling around the world. Then it was light both day and night.