Following is a main function of a C++ program, after the main function is executed, what will be showing on the output screen? int main() { Node *head=NULL, *aNode; aNode=new Node(x, head); head=aNode; aNode=new Node(52, head); head=aNode; aNode=new Node(x, head); head=aNode; aNode=new Node(23, head);

head=aNode; aNode=new Node(31, head); head=aNode; aNode=aNode->getNext(); head=aNode; aNode=aNode->getNext(); head=aNode; cout<getItem()< return 0; }

Group of answer choices

23

x

31

52