ABC Inc. plans to issue a 15 -year, 15% annual coupon callable bond. The current yield is 12%. At the end of year 5 , the yield will be either 6%(40% probability) or 20%. The bond will be called at $1,000 (the par value) plus two additional coupon payments if the bond price is higher than the call price. a) Calculate the callable bond price. b) If ABC wants to issue the callable bond at par, what must the coupon rate be? c) Assume that the yield changes to 6% at the end of year 5 , ABC replaces the bond with a new 10 -year bond. The flotation cost is $50 per bond. The new bond will be parked in the money market to earn 3% interest over the 30 -day overlap period. The tax rate is 30%. What is the NPV of the bond refund