When computing the conversion cost per equivalent unit under the weighted-average method of process costing, all of the following information would be needed except:

A. the number of units completed during the current accounting period.

B. the conversion work performed during the current period on the ending work-in-process inventory.

C. the conversion work performed during the current period on the beginning work-in-process inventory.

D. the conversion cost in the beginning work-in-process inventory.

E. the conversion cost incurred during the current accounting period.