what changes should you make to the trigger code?

Exhibit:

Examine the PL/SQL code. The code uses the valmess package. To resolve compiler or run-time errors, what changes should you make to the trigger code?

A.
No changes are required.

B.
Delete the BEGIN and END keywords.

C.
Define an EXCEPTION section to handle exceptions.

D.
Define all Forms Builder variables with the format: :block_name.item_name.

E.
Define a DECLARE section to declare PL/SQL variables.