Diagonalize the following matrix. The real eigenvalues are given to the right of the matrix. - 21 1 - 2 1 2 ;2=- 1, 4 -443 Select the correct choice below and, if necessary, fill in the answer box to complete your choice. -100 O A. For P = , D= 0 40 0 04 -1 0 0 O B. For P = , D= 0 - 10 0 04 O C. The matrix cannot be diagonalized