Consider the following security trigger

ALTER TABLE customer$\_$data ADD COLUMN is$\_$deleted BOOLEAN DEFAULT FALSE;

CREATE OR REPLACE FUNCTION soft$\_$delete$\_$customer$()$

RETURNS TRIGGER AS $$

BEGIN

NEW.is$\_$deleted :$=$ TRUE;

RETURN NEW;

END;

$$ LANGUAGE plpgsql;

CREATE TRIGGER trigger$\_$soft$\_$delete$\_$customer

BEFORE DELETE ON customer$\_$data

FOR EACH ROW EXECUTE FUNCTION soft$\_$delete$\_$customer$()$;

What column does the soft$\_$delete$\_$customer function modify?

is$\_$active

deleted$\_$at

is$\_$deleted