The mongols
a. captured constantinople.
b. stopped the spread of the plague to the west, but allowed it to decimate china.
c. were immune from the yersinia pestis.
d. stopped the spread of the plague to china, but allowed it to decimate the west.
e. facilitated the spread of the plague with the creation of its silk road empire.

e. Facilitated the spread of the plague with the creation of its Silk Road empire.

Explanation:

The Mongols made it easier for the propagation of the Black Death from Central Asia to the west and east thanks to the creation of the Silk Road. The disease reached Europe for the first time during 1347 in the Crimea, precisely the city of Caffa. After sorrounding the city for a long time, the Mongol army catapulted their infected dead bodies towards the city in order to infect its people. This eventually led to a wider spreading of the plague, since Genoese traders escaped by ship to Silicy and Southern Europe.

the event is known to be the soviet union.

after world war ii, the united states and the soviet union were the major economic, military, and political powers. the world was bilateral multipolar bipolar unilateral

after world war ii, the united states and the soviet union were the major economic, military, and political powers. the world was bipolar.  

the great leap forward, mao zedong's plan to increase china's agricultural and industrial production, was an overwhelming success. true false

the great leap forward, mao zedong's plan to increase china's agricultural and industrial production, was an overwhelming success. true.

explanation: