William is trying to close a particularly difficult sale. He uses his PDA (personal digital assistant) and a special program to access information within his company's database on pricing. William is using an ______.
A) expert system
B) enterprise resource planning system
C) executive support system
D) application service provider

Question

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The Answer of William is trying to close a particularly difficult sale. He uses his PDA (personal digital assistant) and a special program to access information within his company's database on pricing. William is using an ______.
A) expert system
B) enterprise resource planning system
C) executive support system
D) application service provider

William Is Trying to Close a Particularly Difficult Sale