Matlab Question Assuming we have a function that has one input, a square $($n x n$,$ for any integer n$)$ matrix M$.$ It returns three outputs: D$,$ A$,$ and B$,$ where each of them is a square matrix of n x n$.$

D: takes only diagonal elements in M$,$ other elements are zeros

A: takes only all elements above diagonal in M$,$ other elements are zeros

B: takes only all elements below diagonal in M$,$ other elements are zeros

Assuming M $=[1234$; $5678$; $9101112$; $13141516],$ which of the following is true?