A.Ifyoudonotofferit，IBMorsomeoneelse（perhapsyourcompetitors）will.
B.Protectstheenduserintheeventthereisaserviceissue.
C.ProtectstheResellerintheeventtheenduserhasaserviceissue.
D.alloftheabove
参考答案：D
AIfyoudonotofferitIBMorsomeoneelse（perhapsyourcompetitors）
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