单项选择题

A state agency has recently deployed a new critical app……

A state agency has recently deployed a new critical application on an 8-way p570. The state government has just mandated that all agencies have disaster recovery plans to recover critical
applications in acceptable periods of time with no loss of performance.
Which of the following will best address this new requirement（）

A.HACMP/XD and a 4-way p570 in a second location
B.HACMP/XD and a 8-way p570 in a second location
C.HACMP/XD and an 8-way p570 in the same location
D.HACMP and a 4-way p570 in the same location for the critical applications only

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