B. Mongols
It was established by Kublai Khan, leader of the vast Mongol Empire
Answer:
What was the purpose of the mechanical clock in ancient China?
During the Song Dynasty in China, the mechanical clock was invented in 976 A.D. Chan Ssu-Hsun produced a mercury clock. It was the world's first functional mechanical clock. Mechanical clocks are significant because they were designed to tell time more precisely than water or sun clocks.
State goverments must follow Federal Laws
The imparting of details about the past that are essential but not covered by the action onstage is known as exposition
#2 is the correct answer since they are the closest to conquer