When the Nominal Price of a Good Increases Over Time,the

When the nominal price of a good increases over time,the real cost of buying the good

A) decreases because income also increases over time.
B) must increase.
C) might increase,decrease or stay the same depending on how much the CPI changed.
D) does not change because income also increases over time.
E) might increase,decrease or stay the same depending on how much income changed.