Consider the Following Binary Search Tree Diagram: Consider the Following

Consider the following binary search tree diagram: Consider the following addNode method for inserting a newNode into a binary search tree:
public void addNode(Node newNode)
{
int comp = newnode.data.compareTo(data) ;
if (comp < 0)
{
if (left == null) {left = newNode;}
else { left.addNode(newNode) ; }
}
else
{
if (right == null) {right = newNode;}
else { right.addNode(newNode) ; }
}
}
Which of the following trees represents the correct result after inserting element B, calling addNode on the root of the tree?

A) III
B) IV
C) II
D) I