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D Question 17 The diagram below gives information about demand and supply for cars in Econland. 14 13 S D 0 1 2 3 4 5 6 7 8 9 10 Suppose that each car in Econland creates a $1 negative externality because of pollution. What is the producer surplus of Econland in the free market? (Note: A common question here is whether you should include the externality or not. This is part of this question for you to decide on whether to do so or not.)D Question 18 The diagram below gives information about demand and supply for cars in Econland 14 13 S D 0 1 2 3 4 5 6 7 8 9 10 Suppose that each car in Econland creates a $6 negative externality because of pollution. What is the total surplus (hint. this includes the externality) of Econland in the free market