DS2 has not become the active device for Vlan103’s HSRP group even though all interfaces are active. As related to Vlan103’s HSRP group.  What can be done to make the group function properly ？ （）

• A、 On DS1， disable preempt
• B、 On DS1， decrease the priority value to a value less than 190 and greater than 150
• C、 On DS2， increase the priority value to a value greater 241 and less than 249
• D、 On DS2， increase the decrement value in the track command to a value greater than 10 and less than 50.