Politician: We should impose a tariff on imported fruit to make it cost consumers more than domestic fruit. Otherwise, growers from other countries who can grow better fruit more cheaply will put domestic fruit growers out of business. This will result in farmland' s being converted to more lucrative industrial uses and the consequent vanishing of a unique way of life. The politician's recommendation most closely conforms to which one of the following principles? ['A country should put the interests of its own citizens ahead of those of citizens of other countries.', 'Government intervention sometimes creates more economic efficiency than free markets.', 'A country should put its own economic interest over that of other countries.', 'Social concerns should sometimes take precedence over economic efficiency.']