More poverty, more crime, and lower productivity levels. Bad breath has nothing to do with it because anyone can have bad breath. Illegal immigration has nothing to do with it as that will happen with alcohol or not.
The correct answer is - trade.
The Sumerians engaged in trade with their move of exchanging their surplus food for materials like the copper that they needed to develop their weapons and thus their army forces. This was a very smart move from their side because they managed to use the resource they had in abundance but was scarce in the other surrounding areas so that they take what they need to become stronger and pretty much defend more efficiently from the same people they were engaging in trade with.
C. rises; decreases
If the price of a substitute good rises, the demand for a good decreases.