Table 1.3 shows the hypothetical trade-off between different combinations of brushes and combs that might be produced in a year with the limited capacity for Country X, ceteris paribus. Table 1.3 Production Possibilities for Brushes and Combs Number of Combination Brushes J 0 K 10 L 17 M 21 N 23 Opportunity Cost of Brushes in Terms of Combs NA Number of Combs Opportunity Cost of Com Terms of Brushes 4 3 2 1 0 NA (Table 1.3) In the production range of 2 to 3 combs, the opportunity cost of producing 1 more comb (in terms of brushes) is