Question $3(5$ points$)$

Below is a memory diagram of a LinkedIntList object. Which of the code fragments

below the diagram would insert the number $50$ between the $11$ and $12?$

Node newNode $=$ new Node$()$;

newNode.item $=50$

newNode.next $=$ null;

first.next.next $=$ newNode;

Node newNode $=$ new Node$()$;

newNode. item $=50$

newNode.next $=$ first;

first $=$ newNode

Node newNode $=$ new Node$()$;

newNode. item $=50$;