A. A single serial network between Node ’A’ and Node ’B’ and Node ’C’
B. A point-to-point link between Node ’A’ and Node ’C’，and Node ’B’ and Node ’C’
C. A serial network between Node ’A’ and Node ’C’，and a serial network between Node ’B’ and Node ’C’
D. A point-to-point link between Node ’A’ and Node ’B’ Node ’B’ and Node ’C’ and Node ’A’ ad Node ’C’

A. IPAT via IP Aliasing，default shared volume groups
B. IPAT via IP Replacement default shared volume groups
C. IPAT via IP Aliasing，enhanced concurrent volume groups
D. IPAT via IP Replacement，enhanced concurrent volume groups