(D). none of these.
Let A = \(\begin{bmatrix}
a_{11} & a_{12} & a_{13} \\[0.3em]
a_{21} & a_{22} & a_{23} \\[0.3em]
a_{31} &a_{32} & a_{33}
\end{bmatrix}\)
Elements = 9 Order = 3 × 3
Every item in this matrix can be filled in two ways either by 0 or by 2.
Possible Matrices = 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 = 512
Option (D) is the answer.
