Kelita's Kar Kare Kompany Had the Following Cost and Inventory

Kelita's Kar Kare Kompany had the following cost and inventory data for the month:
Costs incurred for the month: $$\begin{array} { l r } \text { Direct labour } & \$ 6,900 \\\text { Indirect labour } & 1,500 \\\text { Direct materials purchased } & 4,500 \\\text { Factory utilities } & 2,200 \\\text { Factory amortization } & 3,000 \\\text { Factory supervision } & 1,200\end{array}$$
Inventories: $$\begin{array} { l l l } & \text { Ending } & \text { Beginning } \\\text { Direct materials } & \$ 1,500 & \$ 1,800 \\\text { Work in process } & 4,500 & 4,050 \\\text { Finished goods } & 6,000 & 5,250\end{array}$$
What were the direct materials available for the month?

A) $4,500
B) $6,000
C) $6,300
D) $7,800