A 4-way x445 server with 2GB of memory running Windows 2003 Server with Exchange 2003 is performing poorly.  Users are complaining of slow response times when accessing their email.  Which subsystem should be checked first as a potential bottleneck？（）

单项选择题A2-wayinterleavedDDRconfigurationanda4-wayinterleavedSDRAMconfigurationwillproducewhichofthefollowing？（）

A.They will have the same memory bandwidth.
B.2-way will provide higher memory bandwidth than 4-way.
C.4-way will provide higher memory bandwidth than 2-way.
D.4-way will provide higher memory bandwidth but only on an x445.