A customer has determined they want to install an IBM x445 system in their company.  They will be running a large database on the system.  In order to determine how many CPUs will be needed to attain the optimum cost-effective solution， which TWO of the following questions should be asked？（）

• A、How large is the database？
• B、What is the expected user workload？
• C、How is the database software licensed？
• D、What type of user interface will be used？
• E、How much data cache will the database be allocated？