QUESTION 14 [The information presented here applies to questions 14 & 15.] An investment bank purchases a pool of agency mortgage pass-through securities with a par value of $500,000 and issues three classes of collateralized mortgage obligations (two sequential pay bonds and one accrual bond) with the following par values and coupon rates: Tranche Par value Coupon A 250,000 06 07 B 150,000 Z 75,000 08 What is the weighted average coupon (WAC) for this bond