Suppose mystery(const int& item)is a member method of the LinkedList class. What does it do? void mystery (const int& item) { Node* node = new Node (item); if (head nullptr) { head = node; } else{ Node* curNode = head; int 0; while (curNode != nullptr) { m++; curNode = curNode->next; } m = int n = rand() % m; if(n 0) { node->next = head; head = node; } else{ Node* curNode = head; for (int i=0; inext; Node* nextNode = curNode->next; node->next = nextNode; curNode->next = node; } }<-1>