4. Gopher Manufacturing has four possible suppliers, all of which offer different credit terms. Except for the differences in credit terms, their products and services are virtually identical. The credit terms offered by these suppliers are shown below: Supplier P Q R S Trade Credit Terms 1/5, net 35 2/20, net 85 1/15, net 75 3/10, net 90 a. Calculate the cost of foregoing the cash discount from each supplier. b. If the fund can borrow short-term funds from its commercial bank at 8 percent, and if each of the suppliers is viewed separately, which, if any, of the suppliers cash discounts should the firm give up? Why? c. Now assume that the firm could stretch by 30 days its accounts payable from supplier Q. What impact, if any, would this change have on your answer in part b relative to this supplier