Please answer with a good format of computation. Thanks

4. A company is using process costing with the first-in, first-out (FIFO) method, and all costs are added evenly throughout the manufacturing process. If therec are 5,000 in beginning work in process inventory (30% complete), 10,000 units in ending work in process inventory (60% complete), and 25,000 units started in process this period, how many equivalent units are there for this period? 38,800 UHlts. units a. 22,500 units. b. 26,000 units. C. 24,500 units. d. 25,000 units