When the government of Bloom Town chooses to build a dam instead of building a new highway or a new stadium, this is an example of Question 7Select one: A. the gains from trade. B. finding opportunity cost by summing up the costs of all available alternatives. C. allocating scarce resources. D. an externality. E. all the other choices being correct.Locally grown potatoes are produced by 700 identical farms in Ontario. When the price is $2.5 per kilogram, one farm's quantity supplied is 100 kilograms per week and market supply is Question 8Select one: A. impossible to calculate without more information. B. 1,750 kilograms. C. 250 kilograms. D. 70,000 kilograms. E. 100 kilograms