The eigenvalues can be found by solving the characteristic equation
This implies that answer (E) is true. The general solution to are where . Therefore, the eigenvalues are
, therefore, answer (C) is also true.
Therefore, answer (D) is also true.
Therefore, answer (A) is also true. Clearly, not all of the roots are real, so answer (C) is correct.
Please send questions or comments to X@gmail.com where X = physgre.