Suppose that 1996 is the base year for the Consumer Price Index (CPI) and in 2016 the CPI was 154. What does this "154" mean? a. What cost $100 in 1996 would on average cost 154 times as much in 2016. b. What cost $100 in 1996 would on average cost $154 more in 2016. c. What cost $100 in 1996 would on average cost $154 in 2016. d. What cost $100 in 1996 would on average cost 15.4 times as much in 2016