The Activity in Nolan Company's Blending Department for the Month

The activity in Nolan Company's Blending Department for the month of April is given below:
$\begin{array} {| l | r | r | } \hline & \text { Number of Units } & \begin{array} { r } \text { Labour and overhead } \\\text { percentage complete }\end{array} \\\hline \begin{array} { l r } \text { Work in process inventory, } \\\text { April 1 }\end{array} & 8,000 & 50 \% \\\hline \begin{array} { l } \text { Transferred in the during } \\\text { the month }\end{array} & 50,000 & \\\hline \begin{array} { l } \text { Work in process inventory, } \\\text { April 30 }\end{array} & 10,000 & 70 \% \\\hline\end{array}$
All materials are added at the beginning of processing in the Blending Department.


-Using the weighted-average method,what are the equivalent units of production for labour and overhead for the month?

A) 50,000 units.
B) 51,000 units.
C) 47,000 units.
D) 55,000 units.