Correct answer choice is :
4) Rise of the Mongol Empire
Step-by-step explanation:
The nation united the wandering Mongol and Turkic clans of historical Mongolia under the guidance of Genghis Khan, who was declared leader of all Mongols in 1206. The nation grew quickly under his command and then under his descendants, who sent attacks in every way. The broad intercontinental nation combined the east with the west with an imposed Pax Mongolic, or Mongol Peace, admitting business, technologies, assets, and beliefs to be distributed and transferred across Eurasia.