Oliver has written the following rough draft about the fall of one of the classical empires. Choose the correct way to complete each sentence.
The fell as the government became too unstable and weak to fight Huna invaders, promote trade, or maintain public projects. Fortunately, the empire influenced future generations with its highly developed sculptures, elaborate architecture of Hindu temples, and the creation of literature.

Eventually, the empire was reunited. Historians believe that one reason was that people maintained a common .