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.