Which value is valid for the iterate parameter in the CREATE_TIMER built-in function?（）

A.Form_A has updates or deletes that have not been posted or committed, and Form_A invokes Form_B with the OPEN_FORM built-in. 
B.Form_A has updates or deletes that have not been posted or committed, and Form_A invokes Form_B with the CALL_FORM built-in. 
C.Form_A has inserts that have not been posted or committed, and Form_A invokes Form_B with the OPEN_FORM built-in. 
D.Form_A has inserts that have not been posted or committed, and Form_A invokes Form_B with the CALL_FORM built in.

A.An LOV for REFS. 
B.A list item for REFs. 
C.A radio group for REFs. 
D.A hierarchical tree for REFS

A.You cannot create a table form within Forms. 
B.You must use the FORMS_DDL built-in to create the table. 
C.You must use the DBMS_DYNAMIC_DDL package to create the table. 
D.You can write the CREATE TABLE statement directly into the trigger.