If the plan is in process of a standard or distress termination (or has completed the process), the plan is not subject to the minimum funding requirements after the effective date of the plan termination.
If the plan is/was being terminated effective as of a date prior to the beginning of the reporting year, the plan should be reported as not being subject to minimum funding. No SB would be prepared. Question 11 (is this a DB plan subject to minimum funding) is answered "no" and item 11a is left blank.