The Samuelson Company Uses a Job-Order Costing System Overhead Is Charged to Production at 70% of the Direct

The Samuelson Company uses a job-order costing system. The following data were recorded for June: $\begin{array}{|l|l|l|l|}\hline & \text { June } 1 & \text { Added During June } \\\hline \text { Job Number } & \begin{array}{l}\text { Work in Process } \\\text { Inventory }\end{array} & \text { Direct Material } & \text {Direct Labour } \\\hline 475 & \$ 1,000 & \$ 400 & \$ 200 \\\hline 476 & \$ 900 & \$ 600 & \$ 800 \\\hline 477 & \$ 800 & \$ 900 & \$ 1,400 \\\hline 478 & \$ 600 & \$ 1,100 & \$ 1,900 \\\hline\end{array}$ Overhead is charged to production at 70% of the direct materials cost. Jobs 475, 477, and 478 have been delivered to the customer.
Samuelson's Work in Process inventory balance on June 30 was:

A) $2,300.
B) $2,860.
C) $2,720.
D) $6,450.