You need to design a strategy for identifying the number of instances that any one SQL Server 2005 computer will support. What should you do？（）

• A、Specify that each server must have one instance for each customer.
• B、Specify that each server must each have only one instance.
• C、Specify that each server must have one instance for each database that is hosted on that server.
• D、Specify that each server must have one instance for each customer who has one or more databases that are hosted on that server.