can anyone explain how to do this ?

thank you

Question 9 1/1 pts Consumption spending is $4.5 billion, gross private domestic investment is $3 billion, and government purchases are $2 billion. If GDP is $14 billion, which of the following could be true regarding exports and imports in the economy? Correct! Exports are $15 billion, and imports are $10.5 billion. Exports are $6 billion, and imports are $8.5 billion. Exports are $9 billion, and imports are $6 billion. Exports are $4.5 billion, and imports are $2 billion