Hanover Glassware Produces Crystal Serve Ware and Uses Process Costing

Hanover Glassware produces crystal serve ware and uses process costing. At the start of May, 2,300 units were in process. During May, 11,000 units were completed and 2,000 units were in process at the end of May. The units in process at the end of May were 80% complete with respect to material and 30% complete with respect to conversion costs. Other information is as follows: $\begin{array}{cr}\text { Work in process, May } 1 \text { : }\\\text { Direct material } & \$ 28,800 \\\text { Conversion costs } & 48,000 \\\text { Costs incurred during May: } & \\\text { Direct material } & \$ 198,000 \\\text { Conversion costs } & 242,000\end{array}$ How much is the cost per equivalent unit for direct materials?

A) $18.00
B) $25.00
C) $15.71
D) $39.75