Quiz navig estion 27 The consumer price index for Planet Econ consists of only t yet two items: books and hamburgers. In 2016, the base year, 1 2 swered the typical consumer purchased 10 books for E20 each and arked out of 200 hamburgers for E1 each. In 2019, the typical consumer 7 8 .00 purchased 12 books for E23 each and 300 hamburgers for Flag (1.15 each. The consumer price index for 2019 on Planet 13 14 15 question Econ equals: 19 20 21 Select one: O a. 1.55 25 26 O b. 1.25 31 32 33 O c. 1.35 O d. 1.15 37 38 39