Good W Is Produced in a Competitive Industry with Increasing

Multiple Choice

Good W is produced in a competitive industry with increasing costs of production.The figure below shows how a typical firm's long-run average cost curve shifts upward as industry output of good W expands.With 50 firms in the industry,each firm faces an identical long-run average cost curve given by LAC.With 80 firms in the industry,each firm faces an identical long-run average cost curve given by LAC'.And with 120 firms in the industry,each firm faces an identical long-run average cost curve given by LAC''. When there are 80 firms in the industry in long-run competitive equilibrium,total industry output is ____________ units of good W and the long-run marginal cost (LMC) of producing the last unit of good W is $_________.

A) 600; $0
B) 600; $10
C) 48,000; $10
D) 96,000; $16
E) none of the above