单项选择题

方阵的特征值分别是()。

A.9.9473,-2.9736+1.5220i,-2.9736-1.5220i
B.9.9473,-2.9736+1.5220i,-2.9736+1.5220i
C.9.9473,-2.9736-1.5220i,-2.9736-1.5220i
D.-9.9473,-2.9736+1.5220i,-2.9736-1.5220i