4. Place each of the following transactions in one of the four components of expenditure: consumption, investment, government purchases, and net exports.

a. Apple sells a computer to a public school in Paris, Kentucky.

b. Apple sells a computer to an accounting firm in Paris, Illinois.

c. Apple sells a computer to a bakery in Paris, France.

d. Apple sells a computer to Paris Hilton.

e. Apple builds a computer to be sold next year.