The pictures below depicts the cost curves for a representative firm in an industry and the market demand. Initially there are 600 firms.

\f.60 0.50 0.45 0.40 0.35 0.30 0.25 - - - - 0.20 0.15 0.10 Demand 60 120 180 240 300 360 420 480 Quantity (in thousands) What is the long-run equilibrium price? O a. 0.10 O b. 0.30 O c. 0.15 O d. 0.25