单项选择题

YouaredevelopinganASP.NETMVC2Webapplication.ApagemakesanAJAXrequestandexpectsalistofcompanynamesinthefollowingformat.['AdventureWorks'，'Contoso']Youneedtowriteanactionmethodthatreturnstheresponseinthecorrectformat.Whichtypeshouldyoureturnfromtheactionmethod？（）
A.AjaxHelper
B.XDocument
C.JsonResult
D.DataContractJsonSerializer

A.NETMVC2Webapplication.ApagemakesanAJAXrequestandexpectsalistofcompanynamesinthefollowingformat.['AdventureWorks'，'Contoso']Youneedtowriteanactionmethodthatreturnstheresponseinthecorrectformat.Whichtypeshouldyoureturnfromtheactionmethod？（）
A.AjaxHelper
B.XDocument
C.JsonResult
D.DataContractJsonSerializer

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YouaredevelopinganASP.NETDynamicDataWebapplication.BooleanfieldsmustdisplayasYesorNoinsteadofasacheckbox.YoureplacethemarkupinthedefaultBooleanfieldtemplatewiththefollowingmarkup.YouneedtoimplementthecodethatdisplaysYesorNo.WhichmethodoftheFieldTemplateUserControlclassshouldyouoverrideintheBooleanFieldclass？（）
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