单项选择题
A. Since only half the leads are used, the cable will only work at 100Mbps
B. The cable will only work at a maximum of 100Mbps. since 1Gbps only works on T568B cables.
C. There will be no proper data continuity; the standards utilize two different wiring diagrams.
D. The cable will only work at a maximum of 10Mbps. since 100/1000Mbps only works on T568B pure cables