A customer is looking for a low-cost pSeries solution.  The pSeries technical specialist is recommending several p650 Express Configurations.  When reviewing the options with the customer， the pSeries technical specialist should emphasize which of the following limitations？（）

A.Some Express Configurations limit the amount of maximum memory at order time.

B.The customer must meet minimum system requirements to obtain Express Configuration pricing.

C.The Express Configurations offer less than the maximum number of processors.

D.The Express Configurations are only offered through the QuickShip Program.