单项选择题

A.APV features are not supported for some legacy POWER4 adapters
B.APV will require the most current maintenance level for AIX 5.2
C.APV features will require that legacy POWER4 adapters be updated with new microcode
D.The Virtual IO Server must run AIX 5.3 and the LPARs can run either AIX 5.2 or AIX 5.3