Greedy  _______ the opportunity to prove his ability, he took up the without any hesitation.

A. with     B. about    C for       D. of

某公司发行总面额为500万元的8年期债券，票面利率为12%，发行费费率为5%，公司所得税税率25%，该债券的资金成本率（）。

A．9.47%

B．12.63%

C．13.56%

D．9.13%