Answer:
The answer is "Option b".
Step-by-step explanation:
The Manchus accomplished quite well in constructing a foreign monarchy during their rule in China. They also established alliances with the Xiongnu people. They were farming mix and fished too. The place they inhabited is named Manchuria which was northeast of a Great Wall, so it can be properly argued that the Manchus were so much successful than that of the Mongols in comparing Mongolian with Manchu reign in China.