You administer a SQL Server 2008 instance. You plan to deploy a new database to the instance. The database will be subject to frequent inserts and updates. The database will have multiple schemas. One of the schemas will contain a large amount of read-only reference data. You need to design the physical database structure for optimal backup performance. What should you do?（） 

• A、Create the database by using a single data file and a single log file.
• B、Create the database by using a single data file and multiple log files.
• C、Create the database by using a single log file and multiple filegroups.
• D、Create the database by using a single log file and a filegroup that has multiple data files.