The Dexon Company Makes and Sells a Single Product, Called

The Dexon Company makes and sells a single product, called a Mip, and employs a standard costing system. The following standards have been established for one unit of Mip: $\begin{array}{|l|r|r|}\hline & \text { Standard Quantity or Hours } & \text { Standard Cost per Mip } \\\hline \text { Direct Materials } & 6 \text { board metre } & \$ 9.00 \\\hline \text { Direct Labour } & 0.8 \text { hours } & \$ 9.60 \\\hline\end{array}$
There were no inventories of any kind on August 1. During August, the following events occurred:
Purchased 15,000 board metres at the total cost of $\$ 24,000$ .
Used 12,000 board metres to produce 2,100 Mips.
Used 1,700 hours of direct labour time at a total cost of $\$ 20,060$ .
- To record the incurrence of direct labour costs and its use in production,the general ledger would include what entry to the Labour Efficiency Variance account?

A) $240 debit.
B) $480 credit.
C) $1,200 debit.
D) $1,200 credit.