当折现率分别取12% 14%和16%时 某项目对应的净现值为221.45万元 81.75万元和-

当折现率分别取12%, 14%和16%时，某项目对应的净现值为221.45万元、81.75万元和-30.15万元.则该项目的内部收益率为()

A.13.46%

B.15.17%

C.15.46%

D.15.52%