Match List I with List II

LIST I	LIST II
A. A matrix that has unequal number of rows and columns is called	I. Non-singular matrix
B. A matrix whose determinant is non-zero is called	II. Null matrix
C. A diagonal matrix whose diagonal elements are equal is called	III. Rectangular matrix
D. A matrix that is both symmetric and skew-symmetric is	IV. Scalar matrix

Choose the correct answer from the options given below:

A and B are square matrices of order 3 each such that $|A|=3, |B|=2$, then the value of $|4AB|$ will be?

If a matrix A is both symmetric and skew symmetric then :

The least positive integer X satisfying $28 \equiv x (\mod 6)$ is :

If $A = \begin{bmatrix} 1 & 0 \\ -1 & 7 \end{bmatrix}, I = \begin{bmatrix} 1 & 0 \\ 0 & 1 \end{bmatrix}$ and $A^2 = 8A + kI$, the value of k is :

If $\begin{bmatrix} 2x + 3 & y + 1 \\ 2x - z & 3y \end{bmatrix} = \begin{bmatrix} 7 & -2 \\ -4 & -9 \end{bmatrix}$, then matrix $\begin{bmatrix} 3z + 1 & 4 \\ -2 & 4 \end{bmatrix}$ is equal to:

Matrix $A = \begin{bmatrix} 0 & a & 5 \\ 4 & b & -1 \\ c & 1 & 0 \end{bmatrix}$ is skew - symmetric, then the values of a, b c are :