What helped the Khans maintain communication over long distances during the height of the Mongol Empire? A The Khas built an extensive network of roads throughout the territories that they conquered

B

The Khans forced people to learn Mongolian so that they could speak to people from other regions

The Khans required their subjects to learn to read and write so they could understand the empire's laws

D

The Khans developed a postal system that allowed them to efficiently send messages throughout the empire

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D.

Explanation:

Mongol Empire was established under Genghis Khan in 1206. Genghis Khan was considered one of the powerful ruler who almost conquered the whole world. His territory expanded from Pacific Ocean in the east to the west to the shores of Persian Gulf.

During Mongol empire, Genghis Khan created the fastest mode of communication between the empires by greasing the wheels and sending posts. Khans developed a postal system by greasing the wheels which enabled them to deliver their posts within a day across the empire.

Therefore, the correct answer is option D.

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