A Company Had the Following Purchases During Its First Year

A company had the following purchases during its first year of operations: $$\begin{array} { | l | l | } \hline \text { January: } & \text { Purchases } \\\hline \text { February: } & 10 \text { units at } \$ 120 \\\hline \text { May: } & 20 \text { units at } \$ 130 \\\hline \text { September: } & 15 \text { units at } \$ 140 \\\hline \text { November: } & 12 \text { units at } \$ 150 \\\hline\end{array}$$ On December 31, there were 26 units remaining in ending inventory. These 26 units consisted of 2 from January, 4 from February, 6 from May, 4 from September, and 10 from November. Using the specific identification method, what is the cost of the ending inventory?

A) $3,640.
B) $3,280.
C) $3,960.
D) $3,800.
E) $3,500.