QUESTION 1 If we have a Linked List L (20; 30; 40). Using the LinkedList specifications from the slides, how can we insert 10 at the start of the list? L.findFirst(); Integer temp = L.retrieve(); OL.insert (new Integer (10)); L. update (temp); L.findFirst(); L.insert (L.retrieve()); L. update (new Integer (10)); L.findFirst(); OL.insert (new Integer (10)); L. findFirst(); Integer temp L.retrieve(); L. update (new Integer (10)); L.insert (temp)