Consider the Matrix Below $$\left[ \begin{array} { c c c c } - 4 & 1 & 8 & 0.8 \\6.1 & 1 & 0 & 3 \\- 1 & - 0.9 & 5 & - 1\end{array} \right]$$

Multiple Choice

Consider the matrix below.
(a) Determine the order of the matrix.
(b) Determine the order of the matrix and determine if the matrix is a row matrix, a column matrix, a matrix, or none of these.
$$\left[ \begin{array} { c c c c } - 4 & 1 & 8 & 0.8 \\6.1 & 1 & 0 & 3 \\- 1 & - 0.9 & 5 & - 1\end{array} \right]$$

A) (a) $1 \times 4$
(b) column matrix

B) (a) $3 \times 3$
(b) square matrix

C) (a) $3 \times 1$
(b) row matrix

D) (a) $3 \times 4$
(b) none of these