What is the appropriate decision regarding the potential documents in the following bonds? Note that the maturity period is equal to 10 years?

1200 10% 8% 1000 200 6% 6% 500 300 6% 10% 100 1300 8% 4% 1000 600 12% 6% 1000 1200 10% 8% 1000 200 6% 6% 500 300 6% 10% 100 1300 8% 4% 1000 600 12% 6% 1000