Answer: B. Mongolian empire
Explanation:
The Mongolian empire at its height was so large that it is considered to be the largest land empire to ever exist. It stretched all the way from China to eastern Europe and provided for the integration of cultures of people from all over Eurasia.
Founded by Genghis Khan, the empire kept growing even after his death under his sons but eventually fragmented after some internal conflicts.
In 1920 but the 19th amendment was passed in 1919
