What is the transpose of a column vector (123)\begin{pmatrix} 1 \\ 2 \\ 3 \end{pmatrix}123?
(123)\begin{pmatrix} 1 \\ 2 \\ 3 \end{pmatrix}123
(321)\begin{pmatrix} 3 & 2 & 1 \end{pmatrix}(321)
(123)\begin{pmatrix} 1 & 2 & 3 \end{pmatrix}(123)
(111)\begin{pmatrix} 1 & 1 & 1 \end{pmatrix}(111)