Which of the following statements is correct?

	a.	If a firm begins buying on terms of 2/20, net 60, after having bought on terms of 2/10, net 30, this will, other things held constant, probably lengthen its cash conversion cycle.
	b.	If a firm begins buying on terms of 2/20, net 60, after having bought on terms of 2/10, net 30, this will, other things held constant, increase the cost of nonfree (costly) trade credit.
	c.	Because the loan is paid off faster, the effective interest rate is lower if a firm borrows $100,000 on the basis of a 10% "add-on interest rate" loan paid off in 12 equal monthly installments than if the firm borrows the $100,000 on a loan which calls for a nominal 10% rate and for all interest and principal to be paid (repaid) at the end of one year.
	d.	"Commercial paper" is the name given to a type of short-term loan typically used by firms that are too small and financially weak to obtain credit from banks and other normal sources of credit.
	e.	Statements a, b, c, and d are all false.