Eve Company Uses the Weighted-Average Method in Its Process Costing

Eve Company uses the weighted-average method in its process costing system.The following information for the Assembly Department was obtained from the accounting records for September (all materials are added at the beginning of the process) :
$\begin{array}{|l|r|r|}\hline& \text { Number of Units } &\text { Labour and overhead } \\&&\text { percentage complete }\\\hline \begin{array}{l}\text { Work in process inventory, } \\\text { Sept. 1 }\end{array} & 60,000 & 15 \% \\\hline \begin{array}{l}\text { Transferred in during the } \\\text { month }\end{array} & 105,000 & \\\hline \begin{array}{l}\text { Work in process inventory, } \\\text { Sept. 31 }\end{array} & 40,000 & 20 \% \\\hline\end{array}$

$$\begin{array} { | l | r | r | } \hline & \text { Materials } & \text { Labour and overhend } \\\hline \begin{array} { l } \text { Beginning work in process } \\\text { inventory }\end{array} & \$ 30,000 & \$ 16,000 \\\hline \begin{array} { l } \text { Cost added during the } \\\text { month }\end{array} & \$ 63,000 & \$ 320,000 \\\hline \text { Total } & \$ 93,000 & \$ 336,000 \\\hline\end{array}$$
What unit cost (rounded to the nearest cent) was used in calculating the total cost of labour and overhead included in the Work-in-process inventory on September 1?

A) 0.27
B) 0.31
C) 1.78
D) 2.73