Suppose that x points to the last item $($tail$)$ of a singly linked list and y points to the second last item. Which one of the following lines deletes the last item from the linked list?A$)$ y$=$xB$)$ y$.$next$=$xC$)$ x$.$next$=$ y$.$next D$)$ y$.$next$=$NILE$)$ x$.$next$=$NIL