1. Use the graph to answer the question that follows.

\fMC $22 $20 $18 $16 $14 $12 Price $10 $4 Demand $2 MR 10 20 30 40 60 70 80 90 100 Quantity\fShelby Pat Lanelle Price per Widget| Widgets Produced $500 120 80 40 $400 110 60 30 $300 90 40 20 $200 50 20 10 $100 20 10Quantity Marginal Private Cost Marginal Social Cost |Marginal Private Benefit |Marginal Social Benefit 10 $10 $15 $40 $40 20 $15 $20 $35 $35 30 $20 $25 $25 $25 40 $30 $30 $15 $15MSC S=MPC Price ($) D=MPB MSB Quantity