Compare the mongol takeover of china to the mongol takeover of persia

China:the mongols set up tents and grazed cattle in the Chinese palaces.some believed that the Mongols had the Mandate of Heaven.They also furthered Chinese trade,made improvements in infrastructure,built a new capital city, limited severe penalties,supported the arts, and raised merchant status.the Mongol takeover in China was over a period of extended time.
Both:The Mongol rulers in Persia were transformed far more than their counterparts in China were, as the Mongols made extensive use of the sophisticated Persian bureaucracy.In both China and Persia the Mongol rule took use of what each area had to offer, like the taxation system that the Mongols adapted from China
Persia:Unlike what occurred in China, the Mongols who conquered Persia converted in large numbers to the local Muslim faith. A number of Mongols turned to farming and married local people, so when their rule in Persia collapsed, they were not driven out as they had been from China. Instead, they were assimilated into Persian society.Heavy taxation pushed Persian peasants off their land, while Mongol herds of sheep and goats and Mongol neglect of fragile underground water channels did extensive damage to Persian agricultural land.the Mongol invasion in Persia was abrupt.

Ithink the answer is b, monopoly

Your answer is d)magnesium