If the Consumer Price Index (CPI)was 100 in 2002 and 111.5

If the consumer price index (CPI) was 100 in 2002 and 111.5 in 2007,and a typical household's income was $35,000 in 2002 and $39,025 in 2007,then between 2002 and 2007,real household income

A) increased.
B) decreased.
C) was constant.
D) may have increased or decreased.
E) can not be determined.