Whichofthefollowingwirelessservicecomponentsoccurintheimplementphase?()

A.projectkickoff，staging，systemsacceptancetesting，ongoingsupporthandoffmeeting

B.wlanchangemanagement，securityadministration，technologyassessment，operationsplan

C.securityassessment，operationsassessment，suppliermanagement

D.operationsreadinessassessment，systemsrequirementsvalidation，planningprojectkickoff，serviceassurance