Figure: Demand and Supply of Shirts Price of shirts S $15 D O 100 Quantity of shirts (per week) (Ref 1A-5 Figure: Demand and Supply of Shirts) Use Figure Demand and Supply of Shirts. If the line labeled S shows how many shirts per week will be offered for sale at various prices, then it is clear that, for supply, quantity and price are: O a. nonlinear. O b. negatively sloped. O c. coordinated. O d. linear