Answer:
The correct answer is letter "D": issued shares that have been reacquired by a corporation.
Step-by-step explanation:
Treasury stock is a company's own stock that is held in its treasury for later years. Often, a company purchases its treasury stocks on the open market. Treasury stocks may also exist because the issuing company did not sell all of its outstanding shares. Some were held back for later years to raise additional cash or to prevent a hostile takeover.