Choose the correct answers to the questions from the given options: Given $\left[\begin{array}{ll}a & b \\ c & d\end{array}\right] \times X=\left[\begin{array}{l}p \\ q\end{array}\right]$. The order of matrix $X$ is :

Explanation

The order of matrix X is 2x1 because the product of a 2x2 matrix and a 2x1 matrix results in a 2x1 matrix.