How can you achieve this?

You want to ensure that an incomplete document cannot be saved.

How can you achieve this? Please choose the correct answer.
A . Assign a status group to the fields that should be checked for completeness
B . Select the ‘Warning’ indicator for the fields in the incompleteness procedure
C . Set the dialog message for incompletion for the sales document type
D . Assign an incompleteness procedure to the respective item categories

Answer: C