whAt is thE DurAtion oF A FloAting rAtE BonD thAt hAs six yEArs rEmAining to mAturity AnD hAs sEmi-AnnuAl Coupon pAymEnts.AssumE A FlAt-tErm struCturE oF 6 pErCEnt. whiCh oF thE Following is ClosEst to thE CorrECt DurAtion
A．

A、0.500.

B．

B、6.000.

C．

C、12.000.