Given the LinkedListQueue Class Implementation Discussed in Section 16

Given the LinkedListQueue class implementation discussed in section 16.3 (partially shown below) , select the appropriate statements to complete the add method. public class LinkedListQueue
{
Private Node first;
Private Node last;
Public LinkedListQueue()
{
First = null;
Last = null;
}
Public void add(Object newElement)
{
Node newNode = new Node() ;
NewNode.data = newElement;
NewNode.next = null;
If (last == null)
{
First = newNode;
Last = newNode;
}
Else
{
_____________________
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}
}
) ..
}

A) last.next = newNode.next;
Last = newNode;
B) last.next = newNode;
Last = newNode;
C) last = newNode;
Last.next = newNode;
D) last = newNode;
Last.next = newNode.next;