I an Index Is a Convenient Way of Comparing Changes

i. An index is a convenient way of comparing changes for different variables, i.e., average income
And food prices.
ii. The concept of real income is sometimes called deflated income.
iii. Purchasing power of the dollar is the same as the CPI.

A) (i) , (ii) , and (iii) are all correct statements.
B) (i) and (ii) are correct statements but not (iii) .
C) (i) and (iii) are correct statements but not (ii) .
D) (ii) and (iii) are correct statements but not (i) .
E) (i) , (ii) , and (iii) are all false statements.