Answer:
c. borrowing directly from the public.
Explanation:
If the Apple corporation sells a bond it is borrowing directly from the public. That is because corporate bonds are exactly that, they are bonds issued by a corporation in which the individual buying them is basically loaning money to the corporation which they will receive back the full amount that they loaned out as soon as the bond matures. Therefore by buying a corporate bond you are directly loaning that corporation money to finance their operations.
