16. How are corporate bonds ratings determined? Limit answer to no more than 5 lines. Corporate Bond Information Issuer ABC Energy ABC Energy TransPower Telco Utilities Face Value Coupon Rate Rating $1,000 6% AAA $1,000 0% AAA $1,000 10% AA $1,000 12% AA Quoted Price Years Until Sinking Fun Call Period $809.10 20 Yes 3 Years $211.64 20 Yes NA $1,025.00 20 Yes 5 Years $1,300.00 30 No 5 Years