Leader who united the Mongols and conquered eastern China and Central Asia

A. Mongols

B. Genghis Khan

C. Kublai Khan

D. Marco Polo

E. steppes

Genghis Khan

In 1206 Genghis Khan united the tribes of the Mongol steppe and set their warlike sights far beyond their homeland. When Genghis died in 1227, they had all but conquered the Jin dynasty of northern China, and swaths of Central Asia

Explanation:

the correct answer is “opportunity cost”. opportunity cost is what a company misses out because it decided in one option over another one. in this case, the company decided to invest in building a factory so it gave up another possible benefit or profit in order to achieve success with the factory.  

trade-off is not the correct answer since it is a situation in which you accept losing something in return for benefits in other areas.

and finally, consequence is a general term used to accept what it comes when you make a decision. it can be a positive or negative consequence depending if the decision you took was the correct one.  

a, he promoted disarmament