I believe your answer would be A
6 agreement by which a knight agrees to be a sub-vassal to vassal in exchange for land
Hernando de Soto and his army departed from Apalachee. By the end of the day they had reached the southern border of Georgia. While they were there they found the Flint river. They built a crude boat and ferried everyone to the western side of the river.
The nobles’ place in society was essentially to function as middle-men between the peasants and the royal family. Nobles provided work, land, and protection to the peasants while providing funding, supplies, and military service to the king.