$\left| \begin{array} { l l } a _ { 2 } & c _ { 2 } \\a _ { 3 } & c _ { 3 }\end{array} \right|$

Multiple Choice

$\left| \begin{array} { l l } a _ { 2 } & c _ { 2 } \\a _ { 3 } & c _ { 3 }\end{array} \right|$ is the minor of what element in $\left| \begin{array} { l l l } a _ { 1 } & b _ { 2 } & c _ { 1 } \\a _ { 2 } & b _ { 2 } & c _ { 2 } \\a _ { 3 } & b _ { 3 } & c _ { 3 }\end{array} \right|$ ?

A) $a _ { 1 }$
B) $b _ { 1 }$
C) $b _ { 2 }$
D) $b _ { 3 }$