Let A=(1234)A = \begin{pmatrix} 1 & 2 \\ 3 & 4 \end{pmatrix}A=(1324). What is the transpose matrix ATA^TAT?
(1324)\begin{pmatrix} 1 & 3 \\ 2 & 4 \end{pmatrix}(1234)
(4321)\begin{pmatrix} 4 & 3 \\ 2 & 1 \end{pmatrix}(4231)
(3142)\begin{pmatrix} 3 & 1 \\ 4 & 2 \end{pmatrix}(3412)
(1234)\begin{pmatrix} 1 & 2 \\ 3 & 4 \end{pmatrix}(1324)