（单选题）
How can you modify the application to return more meaningful error messages to the user?（）
ACreate a custom messages table. Include the necessary error handling code in the form modules to display the meaningful custom message instead of the ORA- error message.
BProvide users with a form in the application to query the ORA- error, that will return a custom message to replace the ORA- message.
CEliminate constraints where possible, thereby limiting the number of error messages returned.
DCreate a procedure to include the RETRIEVE_MESSAGE built-in that automatically translates common server errors into meaningful messages for use in Forms.
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