Refer to the above supply and demand graph.In the graph,point A is the current equilibrium level of output of this product and point B is the optimal level of output from society's perspective.S is the supply curve without a tax and S_t is the supply curve with a tax.The external cost to society from the production of this product is measured by: A) DE. B) EF. C) FG. D) AB.

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The Answer of Refer to the above supply and demand graph.In the graph,point A is the current equilibrium level of output of this product and point B is the optimal level of output from society's perspective.S is the supply curve without a tax and S_t is the supply curve with a tax.The external cost to society from the production of this product is measured by: A) DE. B) EF. C) FG. D) AB.

Refer to the Above Supply and Demand Graph