The following shows the Consumer Price Index (CPI) for the years 1990–1992. All of the values use a reference year of 1985.


Year CPI
1990 114
1991 130
1992 145
Which of the following is true about the CPI, based on the information?


a.)
$100 in 1990 would have been worth $114 in 1985.

b.)
$100 in 1991 would have been worth $100 in 1990.

c.)
$100 in 1992 would be equivalent to $130 in 1991.

d.)
$100 in 1985 would be equivalent to $145 in 1992.