ans plz 7

Question / Study the following method carefully which can be related to a certain class, decide what does it do? public void Unknown(E item) { Node node = new Node(item); Node parent=null, current; chard; if(root == null) root = node; else { current = root; while(current != null) { parent = current if (current.data if(de) parent.left node: else parent.right node; 1 Insert a node in a binary search tree with item as its data B Remove a node which its data is equal to item from a binary search tree Remove a node which its data is equal to item from a binary tree Insert a node in a binary tree with item as its data