A. Food. In any other situation it would apply to other, but as it seems they do not eat much food at home, this is their main source of food, it needs to be put there under food.
Ooo, history! I got this one :D
The stamp act was what required a tax to be paid if you exchanged documents. The act was made by the congress, and it allowed those who paid their tax to have a stamp on their document!
....ultimately limited by the states. States reserve the right to set the wage limit. That said, it likely won't stop the Federal government from trying.