资料：Humanresourceprofessionalsactasmediatorsbetweenanorganization'smanagementanditsworkers.ThisrequireswearingmanyhatsIt'sanHRadministrator'sjobtomakesurethatemployeesareworkinginasafeenvironmentthatdisputesaresettled，andthatbenefitsareunderstoodandadministeredproperly.Atthesametime，HRischargedwithrecruitingnewemployeeswhowillnotonlyfitinpersonallyandprofessionallybutalsohelpthecompanyachieveitsbusinessgoals.Theyalsorepresentmanagementwhennegotiatingforbenefitswithcompaniesadministeringthesebenefitsandwhenimplementingcompanywidepoliciesthatwillultimatelylowercostsorboostprofits.TheneedsofHRcoverawiderangeoftasksand，therefore，requireindividualswhoaregoodwithpeopleinadditiontobeingorganized，analytical，business-minded，andheroicmultitaskers. AllcompaniesneedsomekindofHRsupportTheBureauofLaborStatistics(BLS)expectsjobsinHRtogrowfasterthanaverageforalloccupationsthrough2012.Opportunitieswillincreaseasaresultofagrowingeconomyaswellasaneedtoreplaceworkerstransferringtootheroccupationsorretiring.BLSexpectsparticularlystrongdemandfortraininganddevelopmentandemployment，recruitment，andplacementspecialists，withmanagement，consulting，andemploymentservicesfirmsofferingthegreatestnumberofopportunities，thankstoatrendtowardoutsourcingpersonnelfunctions. YoucangettheinsideedgeforacareerinHRbystrengtheningyourunderstandingofbusinessstrategyandplanningandbyspecializinginaspecificindustry.Agreatwaytogetstartedinthefieldiswithpractice，lookforaninternshiporanHRassistantjobifyou'reinschoolorjustout.ManyHRprofessionalsworktheirwayup.Asyoudevelopanunderstandingofthevariouscareertracksandmasterthebasicskillswithinthefunction，you'llbeinagreatpositiontoriseuptheladder. Inparagraph2，whydoesBLSexpectparticularlystrongdemandforcertainHRspecialists?
A.Because the economy as a whole is growing nowadays. B.Because job opportunities in HR grow faster than the average. C.Because transferred or retired workers need to be replaced in time. D.Because companies begin to recruit HR functions from the outside.正确答案A
