The Bus Company Uses a Job-Order Costing System The Direct Labour Wage Rate Is $10 Per Hour

The Bus Company uses a job-order costing system. The following information was recorded for September: $\begin{array}{l}\text { Added During September }\\\begin{array} { | l | r | r | r | } \hline \text { Job Number } & \begin{array} { r } \text { September 1 } \\\text { Inventory }\end{array} & \text { Direct Materials } & \text { Direct Labour } \\\hline 1 & \$ 1,000 & \$ 300 & \$ 200 \\\hline 2 & 1,400 & 250 & 300 \\\hline 3 & 500 & 1,500 & 150 \\\hline 4 & 750 & 4,000 & 400 \\\hline\end{array}\end{array}$ The direct labour wage rate is $10 per hour. Overhead is applied at the rate of $5 per direct labour hour. Jobs 1, 2, and 3 have been completed and transferred to finished goods. Job 2 has been delivered to the customer.
-What is the cost of goods sold for September (before disposition of any under- or overapplied overhead) ?

A) $2,100.
B) $5,925.
C) $3,700.
D) $1,950.