Which of the Following Lines Completes the First (Non-Recursive) Case

Multiple Choice

Which of the following lines completes the first (non-recursive) case of the AVL_Tree insert function?
If (local_root == NULL) {
Local_root = new AVLNode<Item_Type>(item) ;
__________
Return true;
}

A) increase = true;
B) increase = false;
C) decrease = true;
D) decrease = false;