单项选择题
Youcreateafinancialreporttoberepresentedtoboardofdirectors.Theaccountingmanagerhasaskedyoutochangethenumberformattoshowathousandseparator.Whatisthebestmethodtomakethischangetothereportquickly?（）
A.Openthepropertypaletteandsettheformatmaskforallthenumericitemsinthereport.
B.Selectthedatatobefreeformattedinthelifepreviewerandlickonthethousandseparatoricononthestylebar.
C.Gotothelayoutmodelandchangethefieldattributesforthedatatobechangedonthereport.
D.Rebuildthereportusingthereportwizardsettingthisformatoncreation.