In what way were the mongol invasions of russia and persia different?

a. in russia, many people were forced to give up their lands; in persia, many mongols converted to islam.
b. in russia, many mongols shared their wealth; in persia, many people were forced to give up their valuables.
c. in russia, the mongols established a form of limited democracy; in persia, the mongols established a theocracy.
d. in russia, many mongols converted to islam; in persia, many mongols converted to buddhism.