q5

1 What would the following private method do il considered to be within the BinaryTree class private int Unknown (Node node) if (node - null) return 0; if(node.left = null && node.right = null) if(node.Jeft.data.equals (node.right.data)) return 2p.data+ Unknown(node let)Unknown rode right else return Unknowrnode.left) + Unknown noderight) else return Unknown node left) + Unknown(node.right: will return the overall summation of the data of the children of nodes that have two children with same data value will return number of nodes for which a node has two children with the same data values will return number of nodes which have two children. will return the overall summation of the data of the children of nodes that have two children with same data value and only one value of them is involved in the summation