A Company's Inventory Records Contain the Following Information -According to the Above Table

A company's inventory records contain the following information: $$\begin{array} { | r | r | r | } \hline \text { Begirring Irventory: } & 300 \text { units } & \$ 780 \\\hline \text { Purchased on June 10 } & 400 \mathrm { urits } & 1,170 \\\hline \text { Purchased on Jurne 15 } & 500 \mathrm { urits } & 1,260 \\\hline \text { Purchared on Jure 28 } & \mathbf { 3 0 0 u n i t s } & 990 \\\hline & 1,500 & \$ 4,200 \\\hline\end{array}$$
-According to the above table.The company sold 1,000 units during June and 500 units were in its ending inventory on June 30.
If the company uses the weighted average inventory costing method,what is the cost of its ending inventory?

A) $4,200.
B) $2,700.
C) $1,400.
D) $1,365.