When the clverify utility is run，verification checks use ODM data provided by the common communication infrastructure. This provides efficient access to configuration ODMs from the other nodes. The utility manages these files by storing the copies in various directories depending on the success or failure of the verification pass. By default，this directory is "/var/hacmp/clverify/current/nodename/ if the ’current’ directory still exists when clverify stops running，this indicates which of the following？（）

A successful completion of clverify
B. A problem with the clverify utility
C. All nodes agree on active configuration
D. Configuration differences between current and last successful clverify