As shown in the figure, all hosts can communicate with each other. Which of the following is true about the mapping relationships between MAC addresses and ports on SWB?
A. MAC-A G0/0/2MAC-B G0/0/2 MAC-C G0/0/3
B. MAC-A G0/0/3MAC-B G0/0/3 MAC-C G0/0/1
C. MAC-A G0/0/1MAC-B G0/0/1 MAC-C G0/0/3
D. MAC-A G0/0/1MAC-B G0/0/2 MAC-C G0/0/3