Assume a linked list contains following integers: 6, 2, 4, 5, 8, 3, 5 and the pointer head is pointing to the first node of the list. What will be the value of variable a after the following statements are executed: Node *curNode; curNode=new Node(5,head); head=curNode; int a=0; while(curNode!=NULL){ a+=curNode->getItem(); curNode=curNode->getNext(); } Group of answer choices 17 33 15 38