Company.com is implementing an HACMP solution. The application ahs a license key based on  The hostname. The hostname is also the name used for one of the TCP/IP interfaces. The application vendor has worked with HACMP systems before and is aware of the issue. The preferred method for resolving this issue is to：（）  

• A、 include the hostname in the resource group definition.
• B、 include the license key in the resource group definition.
• C、 obtain a second license key for a "standby" system from the application vendor.
• D、 Set the hostname to be one of the TCP/IP interface included in a resource group.