问题如下：
Matt, CFA, is investigating the capital structure of Company M, a manufacturer of automobile. The company is in the 25% tax bracket. He has collected the relevant financial information in the following table. What`s the cost of debt after tax?
选项：
A.2.5%
B.5.6%
C.7.5%
解释：
B is correct.
考点：Capital Structure Theory: with tax
解析：rd * (1 – t) = 7.5% * (1 – 25%) = 5.625%
老师好， 这里的考点：Capital Structure Theory: with tax， 但里面哪里有答案里的 rd =YTM (1-T) 的这个公式？ 谢谢。
