Determine the Size of Matrix a and Tell Whether It

Multiple Choice

Determine the size of matrix A and tell whether it is a square matrix, row matrix, column matrix, or none of these.
- $$A = \left[ \begin{array} { r r r r r } 9 & - 14 & 11 & - 6 & - 11 \\- 10 & 0 & 12 & - 3 & \pi \\- 13 & - 4 & 12 & 9 & - 6 \\\sqrt { 3 } & - 14 & - 3 & 11 & 15\end{array} \right]$$

A) 4 × 5; none of these
B) 5 × 4; none of these
C) 4 × 4; square matrix
D) 20; row matrix