linked lists which of the following is not truea reference to class object can be used to access public methods in the object has size dependant on its class has the data type of the class does not hold the object itself access to the links in linked list is usually through the link when you create reference to link in linked listit must refer to the first link must refer to the link pointed to by current must refer to the link pointed to by next can refer to any link you want how many references must you change to insert link in the middle of singly linked list how many references must you change to insert link at the end of singly linked list in the insertfirst(method in the linklist java program (listing )the statement newlink next=firstmeans that the next new link to be inserted will refer to first first will refer to the new link the next field of the new link will refer to the old first link newlink next will refer to the new first link in the list assuming current points to the next-to-last link in singly linked listwhat statement will delete the last link from the list when all references to link are changed to refer to something elsewhat happens to the link double-ended list can be accessed from either end is different name for doubly linked list has pointers running both forward and backward between links has its first link connected to its last link