Suppose the price index was 100 in 2014, 109 in 2015, and the inflation rate was lower between 2015 and 2016 than it was between 2014 and 2015. This means that:
a) the price index in 2016 must be lower than 109.0
b) the price index in 2016 must be lower than 118.0
c) the price index in 2016 must be lower than 118.9
d) the inflation rate between 2015 and 2016 was lower than 1.09%
The answer is C, why?