Which of the following is true? a.update({'a': 'b'}) will change the dictionary to a= {'a': 'b', "A': 'b'} a.update({'a': 'b')) will change the dictionary to a = {'b': 'a', 'A': 'a'} a.update({'a': 'b']) has the same effect as a.get('a')= 'b' a.update ({'a': 'b']) has the same effect as a['a'] = 'b' a['a'] == a.get('a') will return True Which of the following is true? a.update ({'a': 'b'}) will change the dictionary to a = {'a': 'b', "A': 'b'} a.update({'a': 'b'}) will change the dictionary to a = {'b': 'a', 'A': 'a'} a.update({'a': 'b')) has the same effect as a.get('a') = 'b' a.update ({'a': 'b'}) has the same effect as a['a'] = 'b' a['a'] == a.get('a') will return True