A、$1000 pAr vAluE, 10% sEmiAnnuAl, 20 - yEAr DEBEnturE 1s CurrEntly sElling For $1100. thE BonD's CurrEnt yiElD is:
A．

A、8.9%.

B．

B、9. 1%.

C．

C、10.0%.