Which of the following statement is incorrect?

	A.	A corporation can have more than one class of common stock.
	B.	Preemptive rights can be used to control the number of shares outstanding.
	C.	Restrictive covenants can limit the actions of managers of a borrowing firm.
	D.	Many corporate and municipal bonds contain a call provision.
	E.	The U.S. Treasury is the main issuer of indexed bonds.