For the Purpose of Measuring the Cost of Living for Consumers

For the purpose of measuring the cost of living for consumers, one reason the GDP deflator is NOT a good substitute for the CPI is because it

A) compares current year prices with base year prices.
B) has a larger bias than does the CPI.
C) compares a current year basket of goods with a base year basket of goods.
D) and the CPI move in the same direction over time.
E) includes the prices of exported goods, which are not consumed in Australia.