What needs to be set up in the LMS in order for this to work properly?

A customer has a curriculum containing a safety course that users must retrain on every year. Users can access secured areas only while their curriculum status is complete. The users may take a safety exam instead of the course. If the user fails either the exam or the safety course, they must not be allowed into the secured area.

What needs to be set up in the LMS in order for this to work properly? Note: There are 3 correct answers to this question.
A . The exam item must be set up as a substitute for the safety course and the For-Credit completion status of "substituted" must be selected
B . The Force Incomplete setting on the curriculum must be set to "Yes’
C . The exam item must be set up as a substitute for the safety course and the Not-for-Credit completion status must be selected
D . The safety course must be set up as a substitute for the exam item and the For-Credit completion status of "complete" must be selected
E . The Force Credit checkbox must be checked

Answer: A, B, E