Which statement is true regarding locked domains and IBM iNotes Widgets using OpenSocial components?
A. Locked domains must be enabled using the notes.ini variable Lcked_Hosts.
B. Locked domains prevent external mail domains from having unauthorized, direct access to widgets.
C. Locked domains should not be enabled unless IBM WebSphere Application Server 7.0 or older is being used.
D. Locked domains prevent widgets from having direct access to secure information in the browser and in other widgets on the page.