What is the result of swapping row 1 and row 2 in (1234)\begin{pmatrix} 1 & 2 \\ 3 & 4 \end{pmatrix}(1324)?
(3412)\begin{pmatrix} 3 & 4 \\ 1 & 2 \end{pmatrix}(3142)
(1324)\begin{pmatrix} 1 & 3 \\ 2 & 4 \end{pmatrix}(1234)
(2143)\begin{pmatrix} 2 & 1 \\ 4 & 3 \end{pmatrix}(2413)
(4321)\begin{pmatrix} 4 & 3 \\ 2 & 1 \end{pmatrix}(4231)