Please provide answer with explanation because I don't only want the answer but also learn how to do it

17. The demand for oranges in Canada is given by D = 1000 - 100p and supply by domestic producers is S = 200p - 200. The world price is 2 dollars per orange. a. Provide a labelled Supply and Demand diagram showing the market for oranges and supporting calculations to explain why a tariff of 1 dollar would create a welfare loss in this market. b. A journalist suggests that this tariff will be bad news for Canadian apple growers firstly because apples are a substitute in consumption for oranges and secondly ivecause the Canadian demand for oranges is very inelastic. Provide a second supply and demand diagram showing the market for apples. Do you agree with this claim