The Value of Intermediate Goods Is Not Counted in GDP

The value of intermediate goods is not counted in GDP

A) to keep from including goods that reduce society's welfare.
B) because of the tremendous difficulty in keeping track of all the intermediate goods produced in an economy as large as that of Canada.
C) because they are only sold in factor markets.
D) to avoid counting their value twice and overstating the value of GDP.
E) because they are not consumed in the current year.