Ignoring the Government and Foreign Sectors, There Is an Unplanned

Ignoring the government and foreign sectors, there is an unplanned decrease in inventories of $200 billion at the current level of real national income of $12 trillion. From this information, we know that

A) saving equals $200 billion.
B) consumption expenditures equal $12 trillion less saving less $200 billion.
C) planned investment is $200 billion more than planned saving.
D) planned investment is $200 billion less than planned saving.