Assume that direct materials are added at the start of the process. If there was no beginning work-in-process inventory and no ending work-in-process inventory, under the weighted-average process costing method, the number of equivalent units for direct materials would be

Group of answer choices:

a. only equal to the units started.

b. only equal to the units completed.

c. less than the units completed.

d. none of the answers.

e. equal to both the units started and the units completed.