Suppose that the comparative-cost ratios of two products—mangoes and sardines—are as follows in the hypothetical nations of Mangolia and Sardinia: Mangolia: 1 mango = 2 cans of sardines Sardinia: 1 mango = 4 cans of sardines In this scenario, ______________ should specialize in mangoes and ______________ should specialize in sardines. Would a trade of 2 mangoes = 3 cans of sardines be acceptable to both nations?