Which two actions should you perform?

You are the production planner for a manufacturing company.

After running operations scheduling for a production order, the following error message displays:

You need to identify the cause of the error.

Which two actions should you perform? Each correct answer presents part of the solution.

NOTE: Each correct selection is worth one point.
A . Navigate to the work calendar and view working times. Validate that there are working days created in the scheduled period.
B . Review the calendar for the resource to determine if it is expired.
C . Review the available resources for Operation 10. Navigate to the Resource form and validate whether there is a calendar assigned
D . Review the resource group assigned to Operation 10. Check to see if there is a calendar assigned and if the calendar is expired.

Answer: B,C