The last one
Congress claimed the following powers: to make war and peace; conduct foreign affairs; request men and money from the states; coin and borrow money; regulate Indian affairs; and settle disputes among the states.
The reason is very simple - profit.
The rabbits were not worth much to the Europeans, but were to the Aztecs, but the cocoa beans for the Europeans were like gold. They were a very attractive exotic product from which unique and unseen things were made. In the European market the cocoa beans had enormous price, and the demand for it was very high especially from the aristocracy which loved it and didn't speared money for it.
