【单选题】
Using splitvg to create a snapshot volume group of rootvg results in an error. <br /> What is the most likely cause of the error（）
A、There is not an available disk to allocate to the snapshot volume group
B、One of the physical volumes associated with rootvg has a status of "missing"
C、Rootvg is running in enhanced concurrent mode
D、A snapshot volume group cannot be created for the rootvg
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