What is the result of applying R1↔R2R_1 \leftrightarrow R_2R1↔R2 to (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)
(3142)\begin{pmatrix} 3 & 1 \\ 4 & 2 \end{pmatrix}(3412)
(1234)\begin{pmatrix} 1 & 2 \\ 3 & 4 \end{pmatrix}(1324)