thE vAluE oF A 5 - yEAr sEmi-Annul zEro-Coupon BonD with A $ 500 mAturity vAluE AnD 9 pErCEnt DisCount rAtE is ClosEst to:
A．

A、$307.87.

B．

B、$321.96.

C．

C、$500.