Find the Cofactor of the Indicated Element $\mathrm { a } _ { 13 }$

Multiple Choice

Find the cofactor of the indicated element.
- $\mathrm { a } _ { 13 }$
$\left| \begin{array} { r r r } - 2 & - 1 & 0 \\ 2 & 1 & 2 \\ 5 & 3 & 1 \end{array} \right|$

A) 1
B) $- 8$
C) $- 5$
D) $- 1$