TB MC Qu. 14-64 Consider a town with three... Consider a town with three residents. The residents' demand curves for various acres of a public park are shown in the accompanying graphs. 12 12 12 10 10 10 8 8 Price ($) Price ($) 6 6 Price ($) 6 4 4 4 2 2 2 0 O 0 4 6 8 10 0 2 4 6 8 10 0 2 4 6 8 10 Citizen X's Demand Citizen Y's Demand Citizen Z's Demand Suppose the town can purchase land for the park at a cost of $8 per acre. The optimal park size would be acres.