Which three statements are true about Obj-methods? (Choose three.)

Which three statements are true about Obj-methods? (Choose three.)
A . Obj-Browse allows you to return a page list of data on the clipboard.
B . Obj-Delete-By-Handle requires a page on the clipboard to delete an instance.
C . Obj-Refresh-and-Lock can acquire the lock and refresh a page if stale.
D . Obj-Save always performs an immediate write to the database to ensure data integrity.
E . Obj-Open loads an instance of a class from a database onto the clipboard.

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Answer: CDE