Suppose the total market value of all final goods and services produced this year in economy X is $4 million. Of the $4 million worth of goods, $3 million is sold and $1 million is held in inventory. For this year, the GDP for economy X is
a. $4 million.
b. $3 million.
c. $1 million.
d. $7 million.
e. none of the above