Suppose that we have a riskless bond with face value = $1000, a coupon rate of 5% paid annually, and a maturity of 10 years. a. The discount rate at time of issue is 5% and remains constant over a year. What is the price at time of issue. What is the realized rate of return over the first year of investment. Why? b. Suppose at the end of year 1, right after the first coupon payment is made, the discount rate increases to 7%. What is the price of the security at that time? What is the realized rate of return in the first year of investment