单项选择题AsalesteamhasproposedanIBMSystemStorageDS8100configuredwith10TB,splitequallybetweenIBMSystemzandIBMSystemp.TheSystemzenvironmentrequirespoint-in-timecopyandtheSystempenvironmentdoesnot.FortheSystemzenvironment,3TBhavebeenconfiguredwithanadditional2TBforpoint-in-timecopy.Whatistheleastexpensivelicensescopeforpoint-in-timecopy?()
A.All and 10 TB
B.CKD and 2 TB
C.CKD and 5 TB
D.CKD and 10 TB