Suppose the price index was 105 in 2017, 126 in 2018, and the inflation rate was lower between 2018 and 2019 than it was between 2017 and 2018. This means that

These are the answers to the question:

a. the price index in 2019 was lower than 126.0.

b. the price index in 2019 was lower than 147.0.

c. the price index in 2019 was lower than 151.2.

d. the inflation rate between 2018 and 2019 was lower than 1.2 percent.

And this is the correct

b. the price index in 2019 was lower than 147.0.

Explanation:

We can see that the price index rose by 21 units from 105 in 2017 to 126 in 2018.

If the inflation rate was lower between 2018 and 2019, it means that the price index rose by less than 21 units during this period.

Because 126 + 21 = 147, we can be certain that the price index in 2019 was lower than 147.

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