Which three objects can be components of a menu module?（） 

A.It is created as a nondisplay item. 
B.The Lock Record property is set to Yes. 
C.It cannot be referenced in item level triggers. 
D.It is placed on the canvas with the highest sequence number.

A.REUSE 
B.RECYCLE 
C.NO_CHANGE 
D.OCCURRENCE

A.Before the "End default relation program section" comment. 
B.After the "Begin default relation program section" comment. 
C.Before the "Begin default relation program section" comment. 
D.It is not possible to modify the relation-handling code that Forms automatically creates for relations.