Greatbusinesspresentersrelatetheirideasandconceptstotheiraudiencebyusingsimple,powerfuldiagramsinsteadofrelyingontext-basedslides.Infact,drawingdiagramsforcesapresentertomaketheideaclearevenatthepreparationstage.Thespeakercanhelptheaudiencerememberthemessagelongerby___________.

A. displayingtext-basedslides
B. avoidinglongtechnicalterms
C. focusingonthewidthofcoverage
D. usingsimpleandpowerfuldiagrams