题目内容：
根据以下材料，回答题Questions51-55refertothefollowingmemoande-mail.Memo
To:FijiOfficeBuildingtenants
From:EileenHales,CorwinHillCompany
Date:March1
CorwinHillCompanyispleasedtoannouncethatwehaveassumedthemanagementoftheFijiOfficeBuilding.Wearelookingforwardtoworkingwithyou.
Thisisalistofimportantcontactswithinourcompany.
LegalDepartment
AdministrativeAssistant,Mr.DamianPerry<dperry@corwin.com>
BuildingMaintenance
MaintenanceCoordinator,Ms.CallieWaller<cwaller@corwin.com>
(ForproblemswithtelephonelinesandInternetaccess,pleasecontactMr.ZackLaurelofBeamWire&Cabledirectlyatlaurel@beamwire.com)
GeneralManagement
OfficeManager.Ms.EileenHales<ehales@corwin.com>
CorwinHillCompany
209-555-0234
E-MailMessage
From:NasyaAbbot<abbot@quigley.com>
To:CallieWaller<cwaller@corwin.com>
Date:March31Subject:Lockinstallation
HiMs.Waller,
MynameisNasyaAbbotandIworkatQuigleyConsulting.WearelocatedontheSecondflooroftheFijiOfficeBuilding.Wewouldliketoinstallanadditionallocktothefrontdoorofouroffice
inordertoincreasesecurity.Wewillneedfivecopiesofthenewkeyplustheoriginal.Iwouldappreciateitifyoucouldsendmeanestimateofthecostbythecloseoftheweek.
Thankyouforyourassistance.
Sincerely,NasyaAbbot
WhatkindofbusinessisCorwinHillCompany? A．Apropertymanagementcompany
B．AnInternetaccessprovider
C．Ahardwaresupplier
D．Aconstructioncompany
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