Which of these matrices has eigenvalues λ1=1\lambda_1 = 1λ1=1 and λ2=5\lambda_2 = 5λ2=5?
(3223)\begin{pmatrix} 3 & 2 \\ 2 & 3 \end{pmatrix}(3223)
(1005)\begin{pmatrix} 1 & 0 \\ 0 & 5 \end{pmatrix}(1005)
(2112)\begin{pmatrix} 2 & 1 \\ 1 & 2 \end{pmatrix}(2112)
(5111)\begin{pmatrix} 5 & 1 \\ 1 & 1 \end{pmatrix}(5111)