PLEASE HELP! GIVING 20 POINTS!!!!!! Which of the following statements accurately describes the rule of Genghis Khan?

He was a brutal leader, but also encouraged learning, religious freedom, and established laws to protect private property.

He was a strict but fair leader who advanced the idea that conquests could be made peacefully in the Mongol empire.

He was a brutal leader who advanced the military but made few other positive changes in the Mongol empire.

He was a strict but fair leader who brought about many positive changes in the Mongol empire.