1 itialize objects: J a HashSet object, nset, of Double objects ) a HashSet object, stset of Student objects. ). a TreeSet object, cset, of Card objects. a TreeSet object, cSet1, of City objects, ordered by the default order l a TreeSet object, cset2, of City objects, ordered by the alternative order ByPopulation B. True or false? )A HashSet object can be accessed using index ) An ArayList object can have duplicated elements. ) A LinkedList object can be accessed using index. ) A TreeSet object can have duplicated elements