Read the excerpt from "The People Could Fly,"

Say the people who could fly kept their power, although they shed their wings. They kept their secret magic in the land of slavery. They looked the same as the other people from Africa who had been coming over, who had dark skin. Say you couldn't tell anymore one who could fly from one who couldn't.

How does the author develop dialect in this passage?

A. She talks about secret magic.

B. She describes people who fly.

C. She creates a picture of Africa.

D. She begins sentences with "Say."

D. She begins sentences with "Say."