Refer to the exhibit. Why has this switch not been elected the root bridge for VLAN1?()<br /> <img src="https://nimg.ppkao.com/2018-07/ppweb/2018072317201039316.png?sign=4d012cf7faa5f2225eaa2baae5cb16ca&t=62d04f6c" />
A、It has more than one interface that is connected to the root network segment.
B、It is running RSTP while the elected root bridge is running 802.1d spanning tree.
C、It has a higher MAC address than the elected root bridge.
D、It has a higher bridge ID than the elected root bridge.