Concerning the Assyrian Empire, It Is Most Correct to Say

Concerning the Assyrian Empire, it is most correct to say that

A) the Assyrian transformation from nomadic life to warfare occurred because of a decline in their traditional grazing lands.
B) the empire emerged out of the Hittite monarchy in Turkey.
C) Assyrian kings enlarged the empire in part through their own displays of toughness and sly creativity.
D) its only real competition for the Tigris valley came from the Hittites centered in Turkey.
E) its chief town, Nineveh, was situated about halfway down the Tigris-Euphrates valley, in order to more easily control Babylonia.