A firm's bonds have a maturity of 20 years with a $1,000 face value, have a 7% annual coupon rate (semi-annual payments), are callable in 3 years at $1,070, and currently sell at a price of $1,080. a) What is their nominal yield to maturity? b) What is their nominal yield to call? a) 6.29%; b) 4.14% a) 6.29%; b) 6.20% a) 6.29%; b) 6.46% a) 3.15%; b) 2.07% a) 3.15%; b) 3.10%