The answer is C: they could be bought and sold like goods.
Andrew Johnson was the 17th president of the United States.
Pyramids, scultures, monuments where they did their sacrifices and there is one Mayan city on El Salvador that has a soccer field where the mayans played soccer with the head of the last loser that was killed on their sacrifices
They wanted a better economy. Money, first and foremost. They wanted to get more money by stealing, taxing, trade and business. This was the main reason they wanted an empire (and I think they were speaking for the majority when they were thinking of empire).