ASystempadministratoriscurrentlyworkingonaproblemwithIBMSupport.Theadministratorfeelsthattheirexpectationsarenotbeingmetonthisproblem.WhatistheIBMrecommendedproceduretoensurethattherequestishandledappropriately（）
A.Requesttochangetheseverityto
B.RequesttospeaktotheDutyManager.
C.Requesttoescalatetheproblemtodevelopment.
D.CallIBMSupportagainandrestarttheprocess
参考答案：B
