Answer: The correct answer is "E. There may be over or underapplied overhead "
Explanation: After posting all actual factory overhead and applying factory overhead to production departments in a process costing system, there may be over or underapplied overhead depending on whether the real factory overhead are greater or smaller than the applied factory overhead.
If the actual are greater than those applied: underapplied overhead
If the actual are less than those applied: overapplied overhead.