The aftertax cost of debt generally decreases when:

I. A firm's bond rating increases. II. The market rate of interest decreases. III. Tax rates increase. IV. Bond prices drop.

	A.	I and III only
	B.	II and III only
	C.	I, II, and III only
	D.	II, III, and IV only
	E.	I, II, III, and IV