Answer:
Kublai Khan His term was the fifth Great Khan of the Mongol Empire
Explanation:
From wiki - <em>Kublai Khan, born Kublai and also known by the temple name Shi-zu, was the fifth Khan of the Mongol Empire, reigning from 1260 to 1294. He also founded the Yuan dynasty in China as a conquest dynasty in 1271, and ruled as the first Yuan emperor until his death in 1294.</em>
Since Roman was expanding and it didn't have control of their lands and couldn't govern most of it. It kept expanding until the western part of Roman was conquered by Barbarians.
The Golden Age of Latin literature spanned the last years of the republic and the virtual establishment of the Roman Empire under the reign of Augustus
Answer is b because it separates the desert and the savana
