Refer to the exhibit.  What is the result of setting GLBP weighting at 105 with lower threshold 90  and upper threshold 100？ （）

• A、 Only if both tracked objects are up will this router will be available as an AVF for group 1.
• B、 Only if the state of both tracked objects goes down will this router release its status as an AVF  for group 1.
• C、 If both tracked objects go down and then one comes up， but the other remains down， this router  will be available as an AVF for group 1.
• D、 This configuration is incorrect and will not have any effect on GLBP operation.
• E、 If the state of one tracked object goes down then this router will release its status as an AVF for  group 1.