Compute the present value of interest tax shields generated by these three debt issues. Consider corporate taxes only. Assume that the marginal tax rate is Tc = 0.40. - a. A $2,000, one-year loan at 6%. (Do not round intermediate calculations. Round your answer to 2 decimal places.) Present value b. A five-year loan of $2,000 at 6%. Assume no principal is repaid until maturity. (Do not round intermediate calculations. Round your answer to 2 decimal places.) Present value