YouareimplementinganASP.NETMVC2Webapplicationthatallowsuserstoviewandeditdata.Youneedtoensurethatonlylogged-inuserscanaccesstheEditactionofthecontroller.WhataretwopossibleattributesthatyoucanaddtotheEditactiontoachievethisgoal？（）
A.[Authorize（Users=""）]
B.[Authorize（Roles=""）]
C.[Authorize（Users="*"）]
D.[Authorize（Roles="*"）]
正确答案：参考A, B
