Consider the production possibility frontier that is given in the diagram. This PPF illustrates the production possibilities for Smallia, a country that produces just Cookies (C) and Pencils (P). Assume that this PPF is linear over each of the provided segments in the diagram (so the PPF is linear from point A to point B, from point B to point C, ....). Use this diagram and your calculations to answer this set of questions. Cookies, C A 20 18 15 6 - B 5 10 15 17 Pencils. P a) Smallia is currently producing in the linear segment between point A and point B. Suppose Smallia decides to produce 1/2 more pencil (assume they will still be producing between point A and point B). What is the opportunity cost of this decision? Explain your answer. b) Smallia is currently producing in the linear segment between point B and point C. For each of the following combinations, determine whether the combination is either feasible and efficient, feasible and inefficient, or infeasible. i. Combination (P, C) = (6, 82/5) ii. Combination (P, C) = (7, 91/5) iii. Combination (P, C) = (42/5, 16) c) What is the opportunity cost of producing one more cookie if Smallia is currently producing 10 cookies?