The figure below shows the costs and benefits associated with wood pulp production. Without regulation the market will produce tons of wood pulp at a price of per ton. Price (dollars per ton) 1.100 1.000 900 800 700 600 500 Quantity (tons per week) O 5; $1, 100 O 3; $900. O 5; $700 O 3; $600 O 4; $900