They played a important role as voter and elected officials
A. Xuanzong
Of all the leaders listed, Xuanzong is the only one who ruled in the Tang Dynast, therefore he is the correct answer. Genghis Khan was the leader of the Mongol Empire, Yangdi was of the Sui dynasty and Huizong ruled during the Song dynasty. Therefore, neither B, C nor D can be the correct answer and A is the right choice.
Answer:
The Feudalism.
Explanation:
It developed in Europe in the Middle ages, during feudalism the King was in complete control. Nobles became responsible for the protection of their vassals and serfs in return for services, such as fighting in a noble's army or farming the land.
For irrigation, growing crops, and raising animals. It'll all about the condition of the weather, too.
