Final answer:
The correct answer is B. A production cost report summarizes the costs assigned to each process department and the units in ending work-in-process inventory. Option B is the true statement.
Step-by-step explanation:
A production cost report is a document that summarizes the costs incurred in the production process. It provides information about the costs assigned to each process department and the units in ending work-in-process inventory.
Option A is not true because a single production cost report is prepared for the entire production process, not by each process department separately.
Option B is true. The costs assigned to the units in ending work-in-process inventory become the beginning work-in-process inventory balances on the next month's cost report.
Option C is not true because the production cost report typically includes multiple schedules or sections, not just one.
Therefore, the correct option is Option B.