d) Assume that prices are the same as was used in part (a). If the marginal utility of a book is 20, what is the marginal utility of coffee if he is maximizing his utility? (4 marks) e) Now assume that textbooks and coffee are complements for Kim. For him to consume one textbook, he needs 1 cup of coffee. How many textbooks does he consume given his income of GHS 40 and the prices used in part (a)? What if economics is so boring that Kim needs 2 cups of coffee for every book that he consumes? (4 marks) f) If Kim's utility function for textbooks and coffee is given by U (B, () = BOSC15 where B represents the textbooks, and C represents coffee, relying on the prices in part (@) and the income of GHe 40, calculate the optimal combinations of textbooks and coffee that maximizes Kim's utility. (10 marks) g) What does it mean to say all giffen goods are inferior but not all inferior goods are giffen'? (5 marks)Question 3 [35 MARKS] Kim is a typical economics undergraduate student who consumes 2 goods: economics textbooks and coffee. Kim earns a student's income of GHe 40 a month. Kim can either spend it all on books and get 5 books or spend it all on coffee and get 20 cups. a) Given this information, construct the equation for Kim's budget line (put books on the x-axis and coffee on the y axis). (2 marks) b) The following are the bundles that Kim can afford with his income: Books Coffee 1 16 S D 3 8 2 12 Fill in the blanks in the table with the quantities that will exhaust Kim's income (6 marks) c) Kim gets a research grant, and his income increases to GH 80 a month. What is the new equation of his budget line? What if income stays constant at GHS 40, and the price of a book increases to GHS 10. (4 marks)