The Epic of Gilgamesh Is Considered the World's First Great

The Epic of Gilgamesh is considered the world's first great literary masterpiece,and:

A) historians have an exact version of the story as it was read in ancient Sumer.
B) the work relates the adventures of a lugal of Uruk in ancient Sumer.
C) the story tells us more about ancient Persian society than it does about ancient Sumer.
D) the epic is largely derived from stories in the Hebrew Bible.
E) The work tells the story of a simple Akkadian farmer.