Which of the following was the most important factor in the spread of the bubonic plague in Eurasia? A
The Mongol expansion from central Asia to China, eastern Europe, and the Middle East
B
The consolidation of western European monarchies
С
The spread of Buddhism from central Asia to China
D
The population decline and the outbreak of peasant revolts in eastern Europe

The correct option is A. The Mongol expansion from central Asia to China, eastern Europe, and the Middle East. The Mongol Empire arose from the confederation of many tribal groups in the Mongols homeland, led by Genghis Khan (c. 1162–1227), who was declared emperor of all Mongols by a council in the year 1206.

Under his and his grandsons' reign, the dominion flourished fast, sending conquering forces in each and every area.

The Black Plague had the most significant impact on Asia in that it resulted in the collapse of the powerful Mongol Empire. And besides, the plague began inside this Mongol Empire and wreaked havoc on people throughout all four kingdoms.

The Disease, also known as the black plague, arose in Central Asia and China and slaughtered a large proportion of people in battling troops.  Janibeg, a military commander, launched pandemic bodies over opposing towns in order to contaminate them as well.  

The epidemic then spread throughout much of Europe and the rest of the world, killing millions of people.

To know more about the bubonic plague in Eurasia, refer to the link below:

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A. The Mongol expansion from central Asia to China, eastern Europe, and the Middle East

Explanation:

The bubonic plague, otherwise known as the Black Death originated from Central Asia, China and killed a lot of men in fighting armies.

A military general Janibeg intentionally catapulted plague-infected bodies into towns of enemies to infect them also.

From there, the plague spread to many parts of Europe and other parts of the world, killing millions

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explanation:

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