Last Year a CD Had a Price of $12 and This

Multiple Choice

Last year a CD had a price of $12 and this year it is $15.Which of the following does not express this price change accurately?

A) Price rose by 25 percent
B) Price rose by $3
C) If this year is the base year,the index number for last year would be 80
D) If last year is the base year,the index number for this year would be 80