Zuniga, Inc

Zuniga, Inc. uses a process costing system. During May, 1,200 units were transferred into Department 2 at a cost of $38,040. Direct materials are added at the beginning of the process. Additionally:
On May 1: Beginning inventories = 250 units, 40% complete
Direct materials costs = $1,250
Conversion costs = $1,356
Transferred-in costs = $2,560
During May: Direct materials costs incurred = $6,000
Conversion costs incurred = $17,013
On May 31: Ending Inventories = 350 units, 20% complete
Using the FIFO method, the cost of the ending work in process was:

A) $2,863
B) $7,113
C) $12,649
D) $13,958