Give the Order of the Matrix, and Identify the Given $$\left[ \begin{array} { c c c c } - 1 & 9 & 5 & 13 \\- 13 & 7 & - 15 & - 10\end{array} \right] ; a _ { 12 }$$

Multiple Choice

Give the order of the matrix, and identify the given element of the matrix.
- $$\left[ \begin{array} { c c c c } - 1 & 9 & 5 & 13 \\- 13 & 7 & - 15 & - 10\end{array} \right] ; a _ { 12 }$$

A) $2 \times 4 ; 9$
B) $4 \times 2 ; 9$
C) $2 \times 4 ; - 13$
D) $4 \times 2 ; - 13$