Find the Cofactor of the Given Element A) $- 8$ B) $- 18$

Multiple Choice

Find the cofactor of the given element.
- $$\begin{array} { l } a _ { 13 } \\A = \left[ a _ { i j } \right] = \left[ \begin{array} { r r r } 7 & - 2 & 5 \\2 & 5 & 4 \\- 1 & - 9 & 3\end{array} \right]\end{array}$$

A) $- 8$
B) $- 18$
C) 13
D) $- 13$