In which of the following cases was the inflation rate 12 percent over the last year?
A.One year ago the price index had a value of 110 and now it has a value of 120.
B.One year ago the price index had a value of 145 and now it has a value of 163.
C.One year ago the price index had a value of 120 and now it has a value of 132.
D.One year ago the price index had a value of 134 and now it has a value of 150.