If the Consumer Price Index Is 180 in Year 1

Multiple Choice

If the consumer price index is 180 in year 1 and 190 in year 2, the inflation rate between year 1 and year 2 is about:

A) 5.26%.
B) 5.26%
C) 5.56%.
D) 5.56%
E) 6.5%.
F) 6.5%
G) 10%
H) 10%.