1 . A=5746

• A. $A=\left[\begin{array}{cc}6& -7\\ -4& 5\end{array}\right]$
• B. $A=\left[\begin{array}{cc}6& 7\\ 4& -5\end{array}\right]$
• C. $A=\left[\begin{array}{cc}2& 0\\ 0& 2\end{array}\right]$
• D. $A=\left[\begin{array}{cc}3& -\frac{7}{2}\\ -2& \frac{5}{2}\end{array}\right]$

Answer: Option C

Explanation: