Correct Answer: A, DTo list the user ID of the manager of the operator who creates a time-off case, you need to join data from the MyCo-HR-SelfService-Work-TimeOff class with the Data-Admin-Operator-ID class. Configuring a class join on the report definition allows operator information to be joined to each case, which directly provides the required data. Using an association rule also helps in joining operator information to each case, ensuring the report has the necessary information from both classes. Therefore, both these options independently satisfy the business outcome.