单项选择题

A.the Disk Magic configuration reportB.an engineer from……

Two DS8700 systems have been proposed for a disk-to-disk BC solution. Each system has 200 TB installed， with a data change rate of 18% per day. Two 2 Gbps CWDM links are in place between the remote data centers with an average utilization rate of 55%. The proposed solution
includes additional CWDM ports.
Which of the following should justify the additional CWDM ports（）

A.the Disk Magic configuration report
B.an engineer from thetelcom providing the dark fiber
C.the bandwidth calculations
D.aCompeteLine analysis

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