D.Atahualpa
"On 17 November the Spaniards sacked the Inca army camp, in which they found great treasures of gold, silver, and emeralds. Noticing their lust for precious metals, Atahualpa offered to fill a large room about 22 feet (6.7 m) long and 17 feet (5.2 m) wide up to a height of 8 feet (2.4 m) once with gold and twice with silver within two months. It is commonly believed that Atahualpa offered this ransom to regain his freedom; however, it seems likelier that he did so to avoid being killed, as none of the early chroniclers mention any commitment by the Spaniards to free Atahualpa once the metals were delivered." -
They were willing to give up the area because they were going to then invaded the rest of their property
Basically a president is someone who takes care of america and watches over us. He/She is like the parent of The United States Of America
Hope that helps Please feel free to ask me questions or give me a better definition to dumb down:)