A network administrator needs to force a high-performance switch that is located in the MDF to become the root bridge for a redundant path switched network. What can be done to ensure that this switch assumes the role as root bridge?（）
- AEstablish a direct link from the switch to all other switches in the network.
- BAssign the switch a higher MAC address than the other switches in the network have.
- CConfigure the switch so that it has a lower priority than other switches in the network.
- DConfigure the switch for full-duplex operation and configure the other switches for half-duplex operation.
- EConnect the switch directly to the MDF router， which will force the switch to assume the role of root bridge.