2. a. MN Inc., $8 preferred ($100par) b. CH inc., $8 preferred ($100 par) with mandatory retirement after 20 years.

2. a. MN Inc., $8 preferred ($100par) b. CH inc., $8 preferred ($100 par) with mandatory retirement after 20 years. 3. Repeat the previous problem (number 2) but assume that comparable yields are 10 percent.