PMF, Inc., can deduct interest expenses next year up to 30% of EBIT. This limit is equally likely to be $6 million, $14 million, or $22 million. Its corporate tax rate is 35%, and investors pay a 15% tax rate on income from equity and a 35% tax rate on interest income. a. What is the effective tax advantage of debt if PMF has interest expenses of $5 million this coming year? b. What is the effective tax advantage of debt for interest expenses in excess of $22 million? (Ignore carryforwards). c. What is the expected effective tax advantage of debt for interest expenses between $6 million and $14 million? (Ignore carryforwards). d. What level of interest expense provides PMF with the greatest tax benefit