Why did Friar Juan de Padilla and two other members of the expedition decide to return to Quivira? A. They believed the cities of gold were still located somewhere in the region. B. They knew the American Indians had other valuable goods, and they wanted to start a trading post. C. They wanted to evangelize the American Indians in the region. D. They wanted to help the Quivira fight off the constant attacks from a neighboring Kaw tribe.