please answer all the questions

Consider the following four bonds Time to Maturity (years) 10 20 15 Required Rate of Return Coupon Bond Par Value Bond Price Rate 10% 10% 1,000 1,000 1,000 1,000 1,000 10% 8% 8% 1,342.38 6% 828.81 Assume that all bonds pay coupons annually A. Determine or calculate the unknown bond parameters in the table above B. Comparing bonds A and B, the price of which bond is more sensitive to changes in the discount rate? That is, if the discount rate were to increase by 1%, which bond price is expected to change more in percentage terms? Why? [No computations are needed, only an explanation in words] C. Similarly to the previous question, comparing bonds C and D, the price of which bond is more sensitive to changes in the discount rate, and why