The network administrator has discovered that the power supply has failed on a switch in the company LAN and that the switch has stopped functioning. It has been replaced with a Cisco Catalyst 2950 series switch. What must be done to ensure that this new switch becomes the root bridge on the network？（）

• A、 Lower the bridge priority number.
• B、 Change the MAC address of the switch.
• C、 Increase the VTP revision number for the domain.
• D、 Lower the root path cost on the switch ports.
• E、 Assign the switch an IP address with the lowest value.