Q. Select the code snippet which performs in-order traversal.

• 
  public void inorder(Tree root) {
    inorder(root.right);
    System.out.println(root.data);
    inorder(root.left);
  }
• 
  public void inorder(Tree root) {
    inorder(data.left);
    System.out.println(root.data);
    inorder(root.data);
  }
• 
  public void inorder(Tree root) {
    System.out.println(root.data);
    inorder(root.left);
    inorder(root.right);
  }
• 
  public void inorder(Tree root) {
    inorder(root.left);
    System.out.println(root.data);
    inorder(root.right);
  }

Submit