It's a lot of problems but the big problem is losing their jobs and houses and don't have enough food and clothes
Answer:
B. European countries claimed and fought over land already inhabited by Native Americans
Answer:
The Mongols. (Genghis Khan, so on, so on.)
Explanation:
When the Mongol Empire was per se at its peak, the Mongols had controlled much of Eastern Europe and the majority of mainland Asia. This meant they controlled The Silk Road, the many trade routes between Europe and China.
Through the (D.) use of civil service based on merit. This opened the door to the people and leaders of the empire to help one another through kindheartedness and determination.