单项选择题

A.An x445 with 2 Xeon DP processors.  Plan on adding 2 more Xeon DP processors next year.
B.An x445 with 2 Xeon MP processors.  Plan on adding 2 more Xeon MP processors next year.
C.An x366 with 2 Xeon MP processors.  Plan on adding 2 more Xeon MP processors next year.
D.An x366 with 2 Xeon DP processors.  Plan on adding 2 more Xeon DP processors next year.