Respuesta :
Money to build defenses, and slaves to build them. I'd say money overall, as money bought slaves and slaves gathered the grain and built walls and defenses which were bought using money (resources were bought to build them).
Answer:
The guy above me is correct. It's C, money.
Explanation:
The funny thing is how they used the money. The money was used for more building materials for the walls the Athenians were using. They also used the money to build weapons and keep city-states safe.
