Answer the next question on the basis of the following information about the cost ratios for two products-fish (F) and chicken (C)-in countries Singsong and Harmony. Assume that production occurs under conditions of constant costs and these are the only two nations in the world. Singsong: 1F = 2C Harmony: 1F = 4C Which one of the following would not be feasible terms for trade between Singsong and Harmony?