Which of the following statements is correct with regard to process costing?

A.

In sequential processing, manufacturing occurs in order of production departments.

B.

The percentage of completion for all units in a subsequent department with respect to transferred in costs from a previous department is 100%.

C.

Nonuniform input occurs when production costs are added at different points in time in a production department.

D.

Manufacturers who operate in a mass production environment choose between actual and normal costing to account for manufacturing overhead.

E.

All of the above statements are correct.