ad the excerpt from "Flight into Yesterday.”

This leg was also the most dangerous of the entire trip. Howland, 2,600 miles to the east, was a tiny speck of land in the middle of the vast Pacific. It would take all of her skill as a pilot and Fred’s as a navigator to find the island. But danger did not worry her. She knew that flying carried risks. She faced them and accepted them.

What mattered was setting herself a challenge and meeting it. What mattered was showing that women could do what men could do and encouraging other women to do what they were capable of. That was why she was flying over the Pacific, looking for a speck of land. Fame was never her goal. The important thing was to do what she had set out to do and to do it as well as she knew how.

She had been that way all her life. Amelia Earhart, world-famous flier, was very much like the young girl who once lived in Atchison, Kansas.

What best describes the author’s purpose?

The author wants readers to understand what Earhart’s childhood was like in Atchison, Kansas.
The author wants readers to understand why Earhart would go on such a dangerous trip.
The author wants readers to understand why Earhart became such a famous figure around the world.
The author wants readers to understand how Earhart’s skills applied to the challenge she faced.