Which best describes the significance of the Epic of Gilgamesh?
a. It is a classic epic and a source of information on Sumerian values.
b. It explains why the Sumerians went to war against their neighbors and how they won wars.
c. It describes in detail how the Sumerians developed writing and shared it with others.
d. It is a source of information on the decline of Sumer and the rise of the retricerians.