Consider the function DoSomething defined below in linkedlist class.

public static boolean DoSonething$($Node $n)\{$

return $n==$ null $||$ n$.$next $==$ null

II $($n$.$next.element n$.$element & & DoSomething$($n:n$.$next$))$;

$\}$

What does this function check?

A$.$ None of them.

B$.$ The elements in the list are sorted in non$-$increasing order of data value.

C$.$ The elements in the list are sorted in non$-$decreasing order of data value

D$.$ Not all elements in the list have the same data value.