Which built-in can you use to programmatically set the validation status for all records in a block?

Which built-in can you use to programmatically set the validation status for all records in a block?

A.
SET_BLOCK_PROPERTY

B.
SET_RECORD_PROPERTY

C.
SET_ITEM_PROPERTY

D.
You cannot use a built-in; you must set a system variable instead.

E.
You cannot programmatically set the validation status because it is controlled by Forms internal processing.