During Company.com planning session， the LVM requirements for HACMP are provided. The administrator explains that there are five volume groups in the current production environment because filesystems constantly change due to the nature of the business. Maintenance outages are limited to one Saturday per month. There is some concern about the amount of time that will be required for outages once HACMP is installed.  With HACMP，what will be the simplest methods of managing LVM changes while minimizing required downtime.（）  

• A、 Make changes and allows Lazy Update to sync the changes later.
• B、 Use the Cluster Single Point Of Control to manage LVM changes.
• C、 Use exportvg on the primary node and improtvg on the second node.
• D、 Set up a local NFS cross-mount， and use the local filesystem until the outage.