The Authors of Your Text Refer Specifically to the Great

The authors of your text refer specifically to the great accomplishment of Rome as

A) its military conquest of the Mediterranean.
B) distinguishing themselves by their prophets.
C) developing a religion that was appealing to so many peoples.
D) originating the tradition of the Pontifex Maximus.
E) transcending a narrow city state era into a world state of different nations and peoples.