The existence of a kink in the demand for reserves and in the supply of reserves is useful when _________________.

	A.	the demand for reserves increases a lot and is not properly anticipated by the central bank.
	B.	the supply of reserves increases a lot and is not properly anticipated by the central bank.
	C.	the demand for reserves increases a lot and is correctly anticipated by the central bank.
	D.	the central bank wants to hit the target.
	E.	both A and B