What is output?
itemlist list = new itemlist();
list.insertathead(15);
list.insertattail(10);
list.insertathead(12);
list.insertattail(17);
();
What is output?
a) 15 10 12 17
b) 17 10 15 12
c) 12 10 15 17
d) 17 12 10 15