Identify the Element Specified for the Matrix $$\left[ \begin{array} { r } 8 \\9 \\1 \\2 \\- 4\end{array} \right]$$

Multiple Choice

Identify the element specified for the matrix.
- $$\left[ \begin{array} { r } 8 \\9 \\1 \\2 \\- 4\end{array} \right]$$
a51

A) 8
B) Does not exist
C) $- 4$
D) 2