Equivalent units for a process costing system using the FIFO method would be equal to (Points : 6)

a. units completed during the period, plus equivalent units in the ending work-in-process inventory. b. units started and completed during the period, plus equivalent units in the ending work-in-process inventory. c. units completed during the period and transferred out. d. units started and completed during the period, plus equivalent units in the ending work-in-process inventory, plus work needed to complete units in the beginning work-in-process inventory.