The 2nd one seems to be it.
Developing the fur trade, converting the Native Americans
The government regulates the economy for the benefit of the public through two approaches: monetary policy and fiscal policy. Through monetary policy, the government exercises its power to regulate the money supply and level of interest rates. Through fiscal policy, it uses its power to tax and to spend.
I believe that the answer was A in response to the Ottoman Turk's conquest of Constantinople. More like permission for King Alfonso to enslave Muslims who were "enemies" of Christianity.