Which of the following statements is TRUE about the reorgvg command?（）

• A、No logical volumes wil be moved if write-verify is set to yes.
• B、No action will be performed if it cannot fulfill the allocation requirements.
• C、Physical partitions of a logical volume will be moved if the logical volume's relocatable flag is set to "no".
• D、Physical partitions will be moved as close as possible to the positions specified, if the allocation requirements cannot be fulfilled.