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You are creating an ASP.NET Web site. The site is configured to use Membership and Role management providers. You need to check whether the currently logged-on user is a member of a role namedAdministrators. Which code segment should you use?()

A.bool isMember = Roles.GetUsersInRole("Administrators").Any()
B.bool isMember = Membership.ValidateUser(User.Identity.Name, "Administrators")
C.bool isMember = Roles.GetRolesForUser("Administrators").Any()
D.bool isMember = User.IsInRole("Administrators")

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