다음 중 행렬 $\begin{pmatrix*}[r] 2 & -1 & 4 \\ 0 & 1 & 4 \\ -3 & 3 & -1 \end{pmatrix*}$ 과 닮은행렬은?

• ①$\begin{pmatrix*}[r] 1 & 0 & 0 \\ 2 & -1 & 0 \\ 2 & 2 & 2 \end{pmatrix*}$
• ②$\begin{pmatrix*}[r] 2 & 0 & 0 \\ 2 & -1 & 0 \\ 5 & 3 & -1 \end{pmatrix*}$
• ③$\begin{pmatrix*}[r] 2 & 1 & -2 \\ 0 & -2 & 3 \\ 0 & 0 & -1 \end{pmatrix*}$
• ④$\begin{pmatrix*}[r] 1 & -1 & 2 \\ 0 & -1 & 0 \\ 0 & 0 & 1 \end{pmatrix*}$