YouarecreatinganASP.NETWebsite.ThesiteisconfiguredtouseMembershipandRolemanagementproviders.Youneedtocheckwhetherthecurrentlylogged-onuserisamemberofarolenamedAdministrators.Whichcodesegmentshouldyouuse？（）A.boolisMember=Roles.GetUsersInRole（"Administrator
题目
YouarecreatinganASP.NETWebsite.ThesiteisconfiguredtouseMembershipandRolemanagementproviders.Youneedtocheckwhetherthecurrentlylogged-onuserisamemberofarolenamedAdministrators.Whichcodesegmentshouldyouuse？（）
A.boolisMember=Roles.GetUsersInRole（"Administrators"）.Any（）
B.boolisMember=Membership.ValidateUser（User.Identity.Name，"Administrators"）
C.boolisMember=Roles.GetRolesForUser（"Administrators"）.Any（）
D.boolisMember=User.IsInRole（"Administrators"）