You MUST use numpy arrays in this question.

WRITE YOUR CODE USING "SELECTION SORT" ALGORITHM ONLY!

The code has already been provided to define a function named sort$\_$mat that accepts the input variable A and returns $B.$

Example: DO NOT USE ANY BUILT$-$IN FUNCTION $($i$.$e$.,$ count$(),$ index$(),$ reverse$(),$ sort$(),$ sorted$(),$ etc.$)$ in PYTHON.

For example:

Test Result

$A=np.$array$(\left[\begin{array}{cccc}1& & & \\ 1& & & 1\\ 1& & 1& 1\\ 1& 1& 1& 1\\ 1& 1& 1& 1\end{array}\right])$

print $($np$.$asarray $($sort$\_$mat $($A$),$ dtype$=$int$))$

$\left[\begin{array}{cccc}& 0& 0& 1\end{array}\right]$

$\left[\begin{array}{cccc}0& 0& 1& 1\end{array}\right]$

$\left[\begin{array}{cccc}0& 1& 1& 1\end{array}\right]$

$\left[\begin{array}{cccc}1& 1& 1& 1\end{array}\right]$

$\left[\begin{array}{cccc}1& 1& 1& 1\end{array}\right]$